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A reminder to protect yourself from the Coronavirus

Last post by Lafuente_Astronomy « 24.03.2020, 02:23
Posted in Announcements
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Attachment(s) by Lafuente_Astronomy » 20.03.2020, 22:41 » in Announcements

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24.03.2020, 02:23
New bugfix release 1.6.2-beta1

Last post by Markerz « 25.03.2020, 05:16
Posted in Development
Replies: 101
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Attachment(s) by onetwothree » 04.10.2019, 21:59 » in Development
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Last post by Markerz View the latest post
25.03.2020, 05:16
Celestia 1.7.0 Development Thread

Last post by selden « 20.03.2020, 18:51
Posted in Development
Replies: 773
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Attachment(s) by onetwothree » 02.11.2018, 20:19 » in Development
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20.03.2020, 18:51

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Physics and Astronomy Forum

Last post by Markk786 « 28.07.2017, 01:51
Replies: 4
by chris » 27.06.2003, 02:16

4 Replies

14213 Views

Last post by Markk786 View the latest post
28.07.2017, 01:51
If you are bored at home, this might entertain you

Last post by pirogronian « 23.03.2020, 09:28
Replies: 1
by alfa015 » 23.03.2020, 03:59

1 Replies

62 Views

Last post by pirogronian View the latest post
23.03.2020, 09:28
Astrophotography

Last post by Anthony_B_Russo10 « 09.03.2020, 23:01
Replies: 5
Attachment(s) by LukeCEL » 08.03.2020, 23:53

5 Replies

146 Views

Last post by Anthony_B_Russo10 View the latest post
09.03.2020, 23:01
Physicality

Last post by pittsburghjoe « 04.03.2020, 23:53

by pittsburghjoe » 04.03.2020, 23:53

0 Replies

32 Views

Last post by pittsburghjoe View the latest post
04.03.2020, 23:53
If we looked into Observation / Measurement in QM, is this what we would find?

Last post by pittsburghjoe « 26.02.2020, 00:11

by pittsburghjoe » 26.02.2020, 00:11

0 Replies

37 Views

Last post by pittsburghjoe View the latest post
26.02.2020, 00:11
Astronomers will be able to image Earth-like planets by 2025

Last post by alfa015 « 22.02.2020, 16:51

Attachment(s) by alfa015 » 22.02.2020, 16:51

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22.02.2020, 16:51
Signature colors of planets

Last post by Joey P. « 13.02.2020, 19:08
Replies: 4
This topic has a poll. by Joey P. » 04.02.2020, 04:08

4 Replies

95 Views

Last post by Joey P. View the latest post
13.02.2020, 19:08
Plants in Super Habitable Exoplanets Could Look Purple

Last post by alfa015 « 09.02.2020, 15:49
Replies: 1
by alfa015 » 31.12.2019, 22:18

1 Replies

87 Views

Last post by alfa015 View the latest post
09.02.2020, 15:49
Is this an accurate color/temprature guide?

Last post by Joey P. « 06.02.2020, 06:07
Replies: 2
by Janus » 04.02.2020, 22:16

2 Replies

58 Views

Last post by Joey P. View the latest post
06.02.2020, 06:07
What if the Mandelbrot set is connected to black holes?

Last post by pittsburghjoe « 05.02.2020, 02:04
Replies: 1
by pittsburghjoe » 04.02.2020, 01:12

1 Replies

62 Views

Last post by pittsburghjoe View the latest post
05.02.2020, 02:04
I may have figured out Dark Matter and a Unified Theory

Last post by Joey P. « 04.02.2020, 22:04
Replies: 25
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by pittsburghjoe » 28.12.2019, 00:28
25 Replies

581 Views

Last post by Joey P. View the latest post
04.02.2020, 22:04
Alpha centauri could host the closest Earth-like planet

Last post by Joey P. « 04.02.2020, 03:56
Replies: 2
by alfa015 » 27.12.2019, 23:38

2 Replies

83 Views

Last post by Joey P. View the latest post
04.02.2020, 03:56
Debate over a new angle of mainstream QM

Last post by pittsburghjoe « 01.02.2020, 17:57

by pittsburghjoe » 01.02.2020, 17:57

0 Replies

47 Views

Last post by pittsburghjoe View the latest post
01.02.2020, 17:57
Electric Universe Theory

Last post by pirogronian « 22.12.2019, 22:14
Replies: 38
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Attachment(s) by pirogronian » 16.08.2019, 05:15
38 Replies

1934 Views

Last post by pirogronian View the latest post
22.12.2019, 22:14
Spectral colors above class "O"

Last post by Joey P. « 20.11.2019, 23:22
Replies: 20
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by fsgregs » 14.03.2005, 02:16
20 Replies

3384 Views

Last post by Joey P. View the latest post
20.11.2019, 23:22
Yes, neutron stars now have a classification system

Last post by Joey P. « 20.11.2019, 23:21

by Joey P. » 20.11.2019, 23:21

0 Replies

94 Views

Last post by Joey P. View the latest post
20.11.2019, 23:21
So, 12 planets eh?

Last post by Joey P. « 18.11.2019, 22:46
Replies: 49
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by Neethis » 16.08.2006, 11:29
49 Replies

21382 Views

Last post by Joey P. View the latest post
18.11.2019, 22:46
Saturn is the new Moon King!

Last post by Joey P. « 18.10.2019, 05:19

by Joey P. » 18.10.2019, 05:19

0 Replies

354 Views

Last post by Joey P. View the latest post
18.10.2019, 05:19
(to be used with Lua Edu Tools) - HR diagram with fictional characters

Last post by Joey P. « 17.10.2019, 04:39
Replies: 1
Attachment(s) by Joey P. » 24.05.2019, 04:47

1 Replies

1845 Views

Last post by Joey P. View the latest post
17.10.2019, 04:39
The mechanism of the formation of floods

Last post by Joey P. « 07.10.2019, 21:20
Replies: 19
by SpaceFanatic64 » 16.06.2019, 22:53

19 Replies

1922 Views

Last post by Joey P. View the latest post
07.10.2019, 21:20
Earth as an exoplanet

Last post by Joey P. « 07.10.2019, 21:20
Replies: 1
by john71 » 29.08.2019, 09:41

1 Replies

1644 Views

Last post by Joey P. View the latest post
07.10.2019, 21:20
OMG! Planet Nine may be a black hole

Last post by Joey P. « 30.09.2019, 05:00
Replies: 2
by Joey P. » 28.09.2019, 19:41

2 Replies

488 Views

Last post by Joey P. View the latest post
30.09.2019, 05:00
Theories on how the Solar System was formed

Last post by Joey P. « 26.09.2019, 22:06

by Joey P. » 26.09.2019, 22:06

0 Replies

720 Views

Last post by Joey P. View the latest post
26.09.2019, 22:06
HOLY-CARAMBA!!!!! This is a large quasar group

Last post by pirogronian « 02.09.2019, 10:20
Replies: 2
by kristoffer » 11.01.2013, 20:34

2 Replies

2986 Views

Last post by pirogronian View the latest post
02.09.2019, 10:20
Black Holes: Overweight Neutron Stars?

Last post by Joey P. « 31.08.2019, 01:28
Replies: 12
by PlutonianEmpire » 04.09.2009, 00:33

12 Replies

5289 Views

Last post by Joey P. View the latest post
31.08.2019, 01:28
Alien planet's color detected

Last post by Gurren Lagann « 25.08.2019, 17:52
Replies: 3
by omega13a » 12.07.2013, 00:24

3 Replies

2370 Views

Last post by Gurren Lagann View the latest post
25.08.2019, 17:52
Definition of spectral types

Last post by SpaceFanatic64 « 25.08.2019, 05:16
Replies: 13
by ajtribick » 02.03.2006, 11:56

13 Replies

6024 Views

Last post by SpaceFanatic64 View the latest post
25.08.2019, 05:16
A moon for a poor dwarf planet

Last post by Joey P. « 25.08.2019, 03:13
Replies: 1
by FarGetaNik » 20.10.2016, 12:31

1 Replies

1642 Views

Last post by Joey P. View the latest post
25.08.2019, 03:13
Will Pluto be a planet again?

Last post by Joey P. « 25.08.2019, 02:23
Replies: 3
by The Chimp » 16.09.2018, 22:50

3 Replies

1649 Views

Last post by Joey P. View the latest post
25.08.2019, 02:23
'Death Star' Gamma-Ray Gun Pointed Straight at Earth

Last post by Joey P. « 22.08.2019, 20:49
Replies: 7
by MKruer » 06.03.2008, 01:21

7 Replies

4063 Views

Last post by Joey P. View the latest post
22.08.2019, 20:49
Stellar Collision

Last post by Joey P. « 22.08.2019, 20:48
Replies: 28
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by Tharghana » 06.01.2008, 19:01
28 Replies

11151 Views

Last post by Joey P. View the latest post
22.08.2019, 20:48
Age of stars.

Last post by pirogronian « 22.08.2019, 09:20
Replies: 3
by Janus » 12.08.2019, 15:29

3 Replies

1087 Views

Last post by pirogronian View the latest post
22.08.2019, 09:20
The Milky Way is not flat!

Last post by john71 « 02.08.2019, 14:45

Attachment(s) by john71 » 02.08.2019, 14:45

0 Replies

1979 Views

Last post by john71 View the latest post
02.08.2019, 14:45
Luhman 16 anyone?

Last post by Joey P. « 26.07.2019, 20:33

by Joey P. » 26.07.2019, 20:33

0 Replies

1910 Views

Last post by Joey P. View the latest post
26.07.2019, 20:33
An amusing astronomy challenge.

Last post by SpaceFanatic64 « 09.07.2019, 03:04
Replies: 1
by Janus » 09.07.2019, 00:46

1 Replies

944 Views

Last post by SpaceFanatic64 View the latest post
09.07.2019, 03:04
Location identification nomenclature inspired by Plus-Code

Last post by ebfortin « 25.06.2019, 20:00

by ebfortin » 25.06.2019, 20:00

0 Replies

2022 Views

Last post by ebfortin View the latest post
25.06.2019, 20:00
How to calculate planet rotation/orientation

Last post by posfan12 « 11.06.2019, 21:16
Replies: 4
by posfan12 » 24.09.2018, 01:50

4 Replies

2016 Views

Last post by posfan12 View the latest post
11.06.2019, 21:16
Discover the oldest star in the universe

Last post by Joey P. « 24.05.2019, 04:40
Replies: 2
by jonh8599 » 26.12.2018, 09:16

2 Replies

1322 Views

Last post by Joey P. View the latest post
24.05.2019, 04:40
Sol has a sibling.

Last post by LukeCEL « 21.03.2019, 04:44
Replies: 6
by Janus » 22.11.2018, 17:41

6 Replies

1526 Views

Last post by LukeCEL View the latest post
21.03.2019, 04:44
Why are Y-type dwarfs not in Celestia? Also...

Last post by Joey P. « 20.03.2019, 01:04

by Joey P. » 20.03.2019, 01:04

0 Replies

2006 Views

Last post by Joey P. View the latest post
20.03.2019, 01:04
Is it possible to change the stellar classes within Celestia?

Last post by Joey P. « 10.03.2019, 01:50
Replies: 1
Attachment(s) by Joey P. » 09.03.2019, 23:02

1 Replies

983 Views

Last post by Joey P. View the latest post
10.03.2019, 01:50
Should Celestia separate the "Be" star subclass from the type "B" class?

Last post by Joey P. « 21.02.2019, 18:39

by Joey P. » 21.02.2019, 18:39

0 Replies

2085 Views

Last post by Joey P. View the latest post
21.02.2019, 18:39
IllustrisTNG

Last post by Gurren Lagann « 05.02.2019, 21:18
Replies: 1
by Lafuente_Astronomy » 05.02.2019, 14:09

1 Replies

1063 Views

Last post by Gurren Lagann View the latest post
05.02.2019, 21:18
About Light Speed Travel

Last post by benjaminthomus « 24.12.2018, 13:28
Replies: 1
by Alextang » 15.06.2018, 07:35

1 Replies

2344 Views

Last post by benjaminthomus View the latest post
24.12.2018, 13:28
National Geographic: Mars TV serie

Last post by The Chimp « 29.09.2018, 23:46

by The Chimp » 29.09.2018, 23:46

0 Replies

2654 Views

Last post by The Chimp View the latest post
29.09.2018, 23:46
create account for https://celestia.space/img/

Last post by Alexell « 01.09.2018, 09:59
Replies: 1
by Danny Lorraine II » 01.06.2018, 23:58

1 Replies

1533 Views

Last post by Alexell View the latest post
01.09.2018, 09:59
Huygens' HASI instrument(s) ?

Last post by Diigg « 30.08.2018, 08:39
Replies: 41
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by Adirondack » 09.02.2005, 09:55
41 Replies

16051 Views

Last post by Diigg View the latest post
30.08.2018, 08:39
Second Gaia data release is tomorrow, 25 Apr 2018

Last post by FSword7 « 03.06.2018, 00:15
Replies: 2
by selden » 24.04.2018, 13:04

2 Replies

1737 Views

Last post by FSword7 View the latest post
03.06.2018, 00:15
TRAPPIST-1 system: 7 Earth-sized planets

Last post by roninwolf1981 « 04.05.2018, 21:07
Replies: 37
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Attachment(s) by john71 » 22.02.2017, 18:22
37 Replies

7933 Views

Last post by roninwolf1981 View the latest post
04.05.2018, 21:07
Moon 4k video made using LRO data

Last post by Goofy « 13.04.2018, 16:56

Attachment(s) by Goofy » 13.04.2018, 16:56

0 Replies

2116 Views

Last post by Goofy View the latest post
13.04.2018, 16:56

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