@aahench.bsky.social
If their instinct is to migrate to avoid hot/cold temps,
what does that do to urban populations? To national borders?
If they hibernate for months to wait out extremes,
how does an economy still function?
When most of its workers are asleep?
Will old rivalries flare up, seizing opportunity?
3/3
what does that do to urban populations? To national borders?
If they hibernate for months to wait out extremes,
how does an economy still function?
When most of its workers are asleep?
Will old rivalries flare up, seizing opportunity?
3/3
December 29, 2025 at 4:46 PM
If their instinct is to migrate to avoid hot/cold temps,
what does that do to urban populations? To national borders?
If they hibernate for months to wait out extremes,
how does an economy still function?
When most of its workers are asleep?
Will old rivalries flare up, seizing opportunity?
3/3
what does that do to urban populations? To national borders?
If they hibernate for months to wait out extremes,
how does an economy still function?
When most of its workers are asleep?
Will old rivalries flare up, seizing opportunity?
3/3
With an unstable axial tilt,
creatures are likely adapted to climate shifts
and extreme seasons.
WHAT IF
The pre-sapients became intelligent.
And built a civilization while the tilt was low
and the climate was stable.
Then the tilt shifted. A global climate disaster.
How would they react?
2/3
creatures are likely adapted to climate shifts
and extreme seasons.
WHAT IF
The pre-sapients became intelligent.
And built a civilization while the tilt was low
and the climate was stable.
Then the tilt shifted. A global climate disaster.
How would they react?
2/3
December 29, 2025 at 4:46 PM
With an unstable axial tilt,
creatures are likely adapted to climate shifts
and extreme seasons.
WHAT IF
The pre-sapients became intelligent.
And built a civilization while the tilt was low
and the climate was stable.
Then the tilt shifted. A global climate disaster.
How would they react?
2/3
creatures are likely adapted to climate shifts
and extreme seasons.
WHAT IF
The pre-sapients became intelligent.
And built a civilization while the tilt was low
and the climate was stable.
Then the tilt shifted. A global climate disaster.
How would they react?
2/3
"Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
G4 star. 1 suitable! w/ pre-sapients.
95 pc away; above, rimward, anti-spinward.
A-II has 1.5G, 19°C avg. temp, and breathable air.
BUT 70° unstable tilt makes seasons extreme.
Even equator almost freezes.
#sf #worldbuilding
1/3
aahench.pythonanywhere.com/system?loc=D...
G4 star. 1 suitable! w/ pre-sapients.
95 pc away; above, rimward, anti-spinward.
A-II has 1.5G, 19°C avg. temp, and breathable air.
BUT 70° unstable tilt makes seasons extreme.
Even equator almost freezes.
#sf #worldbuilding
1/3
December 29, 2025 at 4:44 PM
"Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
G4 star. 1 suitable! w/ pre-sapients.
95 pc away; above, rimward, anti-spinward.
A-II has 1.5G, 19°C avg. temp, and breathable air.
BUT 70° unstable tilt makes seasons extreme.
Even equator almost freezes.
#sf #worldbuilding
1/3
aahench.pythonanywhere.com/system?loc=D...
G4 star. 1 suitable! w/ pre-sapients.
95 pc away; above, rimward, anti-spinward.
A-II has 1.5G, 19°C avg. temp, and breathable air.
BUT 70° unstable tilt makes seasons extreme.
Even equator almost freezes.
#sf #worldbuilding
1/3
"Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Trinary, F9/K7 & distant Y0 brown dwarf.
18.5k pc away, 120° anti-spinward, in Scutum-Centaurus Arm
Found by Kira Hunter.
B-IV is tide-locked but companion gives day/night cycle.
It shifts temperature +/- 5°C.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=D...
Trinary, F9/K7 & distant Y0 brown dwarf.
18.5k pc away, 120° anti-spinward, in Scutum-Centaurus Arm
Found by Kira Hunter.
B-IV is tide-locked but companion gives day/night cycle.
It shifts temperature +/- 5°C.
#sf #worldbuilding
December 22, 2025 at 7:07 PM
"Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Trinary, F9/K7 & distant Y0 brown dwarf.
18.5k pc away, 120° anti-spinward, in Scutum-Centaurus Arm
Found by Kira Hunter.
B-IV is tide-locked but companion gives day/night cycle.
It shifts temperature +/- 5°C.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=D...
Trinary, F9/K7 & distant Y0 brown dwarf.
18.5k pc away, 120° anti-spinward, in Scutum-Centaurus Arm
Found by Kira Hunter.
B-IV is tide-locked but companion gives day/night cycle.
It shifts temperature +/- 5°C.
#sf #worldbuilding
"Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Binary, G6 & white dwarf. 1 habitable world w/ pre-sapients.
61 pc away; above, rimward, spinward.
20+ planets & moons have deep ocean-bound pre-sapients.
Social creatures like whales, in massive frozen oceans.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=D...
Binary, G6 & white dwarf. 1 habitable world w/ pre-sapients.
61 pc away; above, rimward, spinward.
20+ planets & moons have deep ocean-bound pre-sapients.
Social creatures like whales, in massive frozen oceans.
#sf #worldbuilding
December 8, 2025 at 3:39 PM
"Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Binary, G6 & white dwarf. 1 habitable world w/ pre-sapients.
61 pc away; above, rimward, spinward.
20+ planets & moons have deep ocean-bound pre-sapients.
Social creatures like whales, in massive frozen oceans.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=D...
Binary, G6 & white dwarf. 1 habitable world w/ pre-sapients.
61 pc away; above, rimward, spinward.
20+ planets & moons have deep ocean-bound pre-sapients.
Social creatures like whales, in massive frozen oceans.
#sf #worldbuilding
In the old TV series "Sliders", the "Eggheads" episode has the characters arrive in an alternate world where a mind game competition is the top form of entertainment instead of physical sports.
December 7, 2025 at 3:22 AM
In the old TV series "Sliders", the "Eggheads" episode has the characters arrive in an alternate world where a mind game competition is the top form of entertainment instead of physical sports.
Habitable C-II is tide-locked, so temperatures are stable. But it has no oceans.
The highest life is just mosses so the oxygen is thin.
And it experiences episodic resurfacing. Where large-scale eruptions overturn the crust.
Humans living here would face very different challenges than on B-III.
3/3
The highest life is just mosses so the oxygen is thin.
And it experiences episodic resurfacing. Where large-scale eruptions overturn the crust.
Humans living here would face very different challenges than on B-III.
3/3
December 1, 2025 at 5:30 PM
Habitable C-II is tide-locked, so temperatures are stable. But it has no oceans.
The highest life is just mosses so the oxygen is thin.
And it experiences episodic resurfacing. Where large-scale eruptions overturn the crust.
Humans living here would face very different challenges than on B-III.
3/3
The highest life is just mosses so the oxygen is thin.
And it experiences episodic resurfacing. Where large-scale eruptions overturn the crust.
Humans living here would face very different challenges than on B-III.
3/3
Suitable B-III orbits the sub-giant in an eccentric orbit.
And is close enough to the giant for its heat to make a difference.
So this planet has dramatic seasonal temperature changes.
Its animals and pre-sapients may hibernate to avoid the extremes.
Humans would need heavy air-conditioning.
2/3
And is close enough to the giant for its heat to make a difference.
So this planet has dramatic seasonal temperature changes.
Its animals and pre-sapients may hibernate to avoid the extremes.
Humans would need heavy air-conditioning.
2/3
December 1, 2025 at 5:29 PM
Suitable B-III orbits the sub-giant in an eccentric orbit.
And is close enough to the giant for its heat to make a difference.
So this planet has dramatic seasonal temperature changes.
Its animals and pre-sapients may hibernate to avoid the extremes.
Humans would need heavy air-conditioning.
2/3
And is close enough to the giant for its heat to make a difference.
So this planet has dramatic seasonal temperature changes.
Its animals and pre-sapients may hibernate to avoid the extremes.
Humans would need heavy air-conditioning.
2/3
"Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
4 stars, w/ giant & sub-giant. 1 suitable, 1 habitable planet.
75 pc away, anti-spinward.
Suitable planets have average temporature/atmosphere near Earth's.
But other factors can make them difficult homes.
#sf #worldbuilding
1/3
aahench.pythonanywhere.com/system?loc=D...
4 stars, w/ giant & sub-giant. 1 suitable, 1 habitable planet.
75 pc away, anti-spinward.
Suitable planets have average temporature/atmosphere near Earth's.
But other factors can make them difficult homes.
#sf #worldbuilding
1/3
December 1, 2025 at 5:29 PM
"Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
4 stars, w/ giant & sub-giant. 1 suitable, 1 habitable planet.
75 pc away, anti-spinward.
Suitable planets have average temporature/atmosphere near Earth's.
But other factors can make them difficult homes.
#sf #worldbuilding
1/3
aahench.pythonanywhere.com/system?loc=D...
4 stars, w/ giant & sub-giant. 1 suitable, 1 habitable planet.
75 pc away, anti-spinward.
Suitable planets have average temporature/atmosphere near Earth's.
But other factors can make them difficult homes.
#sf #worldbuilding
1/3
WHAT IF
Could carbon-silicate life be deep in the molten balls?
Living cells replicating, evolving.
With lava in place of water, inside crystal shells.
Would complex multi-cellular life be possible?
Might there be plants and animals?
With carborundum skin, diamond bones, and lava in their veins?
3/3
Could carbon-silicate life be deep in the molten balls?
Living cells replicating, evolving.
With lava in place of water, inside crystal shells.
Would complex multi-cellular life be possible?
Might there be plants and animals?
With carborundum skin, diamond bones, and lava in their veins?
3/3
November 24, 2025 at 4:22 PM
WHAT IF
Could carbon-silicate life be deep in the molten balls?
Living cells replicating, evolving.
With lava in place of water, inside crystal shells.
Would complex multi-cellular life be possible?
Might there be plants and animals?
With carborundum skin, diamond bones, and lava in their veins?
3/3
Could carbon-silicate life be deep in the molten balls?
Living cells replicating, evolving.
With lava in place of water, inside crystal shells.
Would complex multi-cellular life be possible?
Might there be plants and animals?
With carborundum skin, diamond bones, and lava in their veins?
3/3
WHAT IF
The gas from the giant contains H, C, O and heavier elements.
The lava balls provide an energetic liquid medium.
Where elements can mix and form molecules.
Could complex molecules grow and survive?
Could they develop auto-catalyic features?
Could life possibly arise in this environment?
2/3
The gas from the giant contains H, C, O and heavier elements.
The lava balls provide an energetic liquid medium.
Where elements can mix and form molecules.
Could complex molecules grow and survive?
Could they develop auto-catalyic features?
Could life possibly arise in this environment?
2/3
November 24, 2025 at 4:22 PM
WHAT IF
The gas from the giant contains H, C, O and heavier elements.
The lava balls provide an energetic liquid medium.
Where elements can mix and form molecules.
Could complex molecules grow and survive?
Could they develop auto-catalyic features?
Could life possibly arise in this environment?
2/3
The gas from the giant contains H, C, O and heavier elements.
The lava balls provide an energetic liquid medium.
Where elements can mix and form molecules.
Could complex molecules grow and survive?
Could they develop auto-catalyic features?
Could life possibly arise in this environment?
2/3
"Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Semi-detached binary. K2 giant venting to M7 dwarf.
46.6pc away, above & coreward.
Dwarf has asteroid belt. Giant is close enough to melt rock.
So asteroids are steaming balls of red-hot lava within gas.
#sf #worldbuilding
1/3
aahench.pythonanywhere.com/system?loc=D...
Semi-detached binary. K2 giant venting to M7 dwarf.
46.6pc away, above & coreward.
Dwarf has asteroid belt. Giant is close enough to melt rock.
So asteroids are steaming balls of red-hot lava within gas.
#sf #worldbuilding
1/3
November 24, 2025 at 4:15 PM
"Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Semi-detached binary. K2 giant venting to M7 dwarf.
46.6pc away, above & coreward.
Dwarf has asteroid belt. Giant is close enough to melt rock.
So asteroids are steaming balls of red-hot lava within gas.
#sf #worldbuilding
1/3
aahench.pythonanywhere.com/system?loc=D...
Semi-detached binary. K2 giant venting to M7 dwarf.
46.6pc away, above & coreward.
Dwarf has asteroid belt. Giant is close enough to melt rock.
So asteroids are steaming balls of red-hot lava within gas.
#sf #worldbuilding
1/3
Whoever it is, it's nice having someone else to help explore the galaxy.
By itself, Sector D0:78 (aahench.pythonanywhere.com/sector?loc=D...) has 11,097,569 systems that can be discovered.
Only 24,336 of them have been surveyed so far.
The galaxy is a big place. 😀
By itself, Sector D0:78 (aahench.pythonanywhere.com/sector?loc=D...) has 11,097,569 systems that can be discovered.
Only 24,336 of them have been surveyed so far.
The galaxy is a big place. 😀
GS: Sector
aahench.pythonanywhere.com
November 17, 2025 at 10:38 PM
Whoever it is, it's nice having someone else to help explore the galaxy.
By itself, Sector D0:78 (aahench.pythonanywhere.com/sector?loc=D...) has 11,097,569 systems that can be discovered.
Only 24,336 of them have been surveyed so far.
The galaxy is a big place. 😀
By itself, Sector D0:78 (aahench.pythonanywhere.com/sector?loc=D...) has 11,097,569 systems that can be discovered.
Only 24,336 of them have been surveyed so far.
The galaxy is a big place. 😀
Notable "Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Binary. A-III habitable w/ 2G gravity, 68 hour day, big N ice cap, pre-sapients.
1288 pc from Earth, rimward.
Found by user "GAB" on 2025-09-07.
Other system with habitable planet is only 6.4 pc away.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=D...
Binary. A-III habitable w/ 2G gravity, 68 hour day, big N ice cap, pre-sapients.
1288 pc from Earth, rimward.
Found by user "GAB" on 2025-09-07.
Other system with habitable planet is only 6.4 pc away.
#sf #worldbuilding
November 17, 2025 at 8:17 PM
Notable "Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Binary. A-III habitable w/ 2G gravity, 68 hour day, big N ice cap, pre-sapients.
1288 pc from Earth, rimward.
Found by user "GAB" on 2025-09-07.
Other system with habitable planet is only 6.4 pc away.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=D...
Binary. A-III habitable w/ 2G gravity, 68 hour day, big N ice cap, pre-sapients.
1288 pc from Earth, rimward.
Found by user "GAB" on 2025-09-07.
Other system with habitable planet is only 6.4 pc away.
#sf #worldbuilding
WHAT IF
There is a sapient species in the ocean?
Trapped below the ice, never to see sky or stars.
But for brief periods generations apart.
When the sky burns and the ice melts.
What would it take to be an astronomer there?
When you may not live to behold a starry night.
#sf #worldbuilding
2/2
There is a sapient species in the ocean?
Trapped below the ice, never to see sky or stars.
But for brief periods generations apart.
When the sky burns and the ice melts.
What would it take to be an astronomer there?
When you may not live to behold a starry night.
#sf #worldbuilding
2/2
November 10, 2025 at 5:15 PM
WHAT IF
There is a sapient species in the ocean?
Trapped below the ice, never to see sky or stars.
But for brief periods generations apart.
When the sky burns and the ice melts.
What would it take to be an astronomer there?
When you may not live to behold a starry night.
#sf #worldbuilding
2/2
There is a sapient species in the ocean?
Trapped below the ice, never to see sky or stars.
But for brief periods generations apart.
When the sky burns and the ice melts.
What would it take to be an astronomer there?
When you may not live to behold a starry night.
#sf #worldbuilding
2/2
Notable "Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Trinary. C-V-1 frozen moon, ocean 100's km deep w/ pre-sapients.
38 pc away, below & coreward.
AB is semi-detached binary, giant and white dwarf.
It causes periodic novae that melt the moon's ice.
#sf #worldbuilding
1/2
aahench.pythonanywhere.com/system?loc=D...
Trinary. C-V-1 frozen moon, ocean 100's km deep w/ pre-sapients.
38 pc away, below & coreward.
AB is semi-detached binary, giant and white dwarf.
It causes periodic novae that melt the moon's ice.
#sf #worldbuilding
1/2
November 10, 2025 at 5:07 PM
Notable "Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Trinary. C-V-1 frozen moon, ocean 100's km deep w/ pre-sapients.
38 pc away, below & coreward.
AB is semi-detached binary, giant and white dwarf.
It causes periodic novae that melt the moon's ice.
#sf #worldbuilding
1/2
aahench.pythonanywhere.com/system?loc=D...
Trinary. C-V-1 frozen moon, ocean 100's km deep w/ pre-sapients.
38 pc away, below & coreward.
AB is semi-detached binary, giant and white dwarf.
It causes periodic novae that melt the moon's ice.
#sf #worldbuilding
1/2
Notable "Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=-...
Binary. A-IV = habitable planet w/ pre-sapients.
14,836.4 parsecs from Earth, in upper edge of galactic halo.
No stars at night. Just galaxy blobs.
And the Milky Way: a disk 107° wide, filling the sky.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=-...
Binary. A-IV = habitable planet w/ pre-sapients.
14,836.4 parsecs from Earth, in upper edge of galactic halo.
No stars at night. Just galaxy blobs.
And the Milky Way: a disk 107° wide, filling the sky.
#sf #worldbuilding
November 3, 2025 at 5:55 PM
Notable "Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=-...
Binary. A-IV = habitable planet w/ pre-sapients.
14,836.4 parsecs from Earth, in upper edge of galactic halo.
No stars at night. Just galaxy blobs.
And the Milky Way: a disk 107° wide, filling the sky.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=-...
Binary. A-IV = habitable planet w/ pre-sapients.
14,836.4 parsecs from Earth, in upper edge of galactic halo.
No stars at night. Just galaxy blobs.
And the Milky Way: a disk 107° wide, filling the sky.
#sf #worldbuilding
Notable "Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Binary system with 3 habitable planets, all heavy with pre-sapients.
54 parsecs from Earth, towards anti-clockwise.
A-III: eccentric orbit w/large temperature changes.
A-IV, B-V: cold w/strong seasons.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=D...
Binary system with 3 habitable planets, all heavy with pre-sapients.
54 parsecs from Earth, towards anti-clockwise.
A-III: eccentric orbit w/large temperature changes.
A-IV, B-V: cold w/strong seasons.
#sf #worldbuilding
October 27, 2025 at 5:34 PM
Notable "Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Binary system with 3 habitable planets, all heavy with pre-sapients.
54 parsecs from Earth, towards anti-clockwise.
A-III: eccentric orbit w/large temperature changes.
A-IV, B-V: cold w/strong seasons.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=D...
Binary system with 3 habitable planets, all heavy with pre-sapients.
54 parsecs from Earth, towards anti-clockwise.
A-III: eccentric orbit w/large temperature changes.
A-IV, B-V: cold w/strong seasons.
#sf #worldbuilding
Notable "Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Click [Anonymous] to view without login
Has a habitable moon with tropical climate and pre-sapients.
Only moon of gas giant A-III, 1.02 AU from a G1 star.
40 parsecs from Earth, towards galactic center.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=D...
Click [Anonymous] to view without login
Has a habitable moon with tropical climate and pre-sapients.
Only moon of gas giant A-III, 1.02 AU from a G1 star.
40 parsecs from Earth, towards galactic center.
#sf #worldbuilding
October 21, 2025 at 2:16 PM
Notable "Galactic Survey" system:
aahench.pythonanywhere.com/system?loc=D...
Click [Anonymous] to view without login
Has a habitable moon with tropical climate and pre-sapients.
Only moon of gas giant A-III, 1.02 AU from a G1 star.
40 parsecs from Earth, towards galactic center.
#sf #worldbuilding
aahench.pythonanywhere.com/system?loc=D...
Click [Anonymous] to view without login
Has a habitable moon with tropical climate and pre-sapients.
Only moon of gas giant A-III, 1.02 AU from a G1 star.
40 parsecs from Earth, towards galactic center.
#sf #worldbuilding
Did you ever have the sequel game "Outreach"?
October 20, 2025 at 6:01 PM
Did you ever have the sequel game "Outreach"?
NOTE: The site is still in early release.
So feedback, bug reports or requests for future enhancement will be appreciated.
So feedback, bug reports or requests for future enhancement will be appreciated.
October 7, 2025 at 2:33 PM
NOTE: The site is still in early release.
So feedback, bug reports or requests for future enhancement will be appreciated.
So feedback, bug reports or requests for future enhancement will be appreciated.
The galaxy map is divided into segments.
Click a segment to open it in a new tab.
Segment maps are divided into sectors.
Click sector to open sector map of subsectors in a new tab.
Click subsector for map of sections with system counts in a new tab.
Click section for systems.
Click system to see it.
Click a segment to open it in a new tab.
Segment maps are divided into sectors.
Click sector to open sector map of subsectors in a new tab.
Click subsector for map of sections with system counts in a new tab.
Click section for systems.
Click system to see it.
October 7, 2025 at 2:32 PM
The galaxy map is divided into segments.
Click a segment to open it in a new tab.
Segment maps are divided into sectors.
Click sector to open sector map of subsectors in a new tab.
Click subsector for map of sections with system counts in a new tab.
Click section for systems.
Click system to see it.
Click a segment to open it in a new tab.
Segment maps are divided into sectors.
Click sector to open sector map of subsectors in a new tab.
Click subsector for map of sections with system counts in a new tab.
Click section for systems.
Click system to see it.
"Galactic Survey" is an explorable model of the entire Milky May galaxy.
• Nested coordinates give each star system a unique location ID.
• Discovered systems are recorded, making them persistent.
• Special features are noted and searchable.
• Users can make accounts to get credit for discoveries.
• Nested coordinates give each star system a unique location ID.
• Discovered systems are recorded, making them persistent.
• Special features are noted and searchable.
• Users can make accounts to get credit for discoveries.
October 7, 2025 at 2:32 PM
"Galactic Survey" is an explorable model of the entire Milky May galaxy.
• Nested coordinates give each star system a unique location ID.
• Discovered systems are recorded, making them persistent.
• Special features are noted and searchable.
• Users can make accounts to get credit for discoveries.
• Nested coordinates give each star system a unique location ID.
• Discovered systems are recorded, making them persistent.
• Special features are noted and searchable.
• Users can make accounts to get credit for discoveries.