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New giant stars list suggestions
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| Emma | Date: Sunday, 12.10.2014, 13:15 | Message # 1 |
 Observer
Group: Newbies
Belgium
Messages: 7
Status: Offline
| giant stars All stars are on Milky Way
UY Scuti (Red Hypergiant) http://en.wikipedia.org/wiki/UY_Scuti
NML Cygni (Red Hypergiant) http://en.wikipedia.org/wiki/NML_Cygni
VX Sagittarii (Red Hypergiant) http://en.wikipedia.org/wiki/VX_Sagittarii
PZ Cassiopeiae (Red Supergiant) http://en.wikipedia.org/wiki/PZ_Cassiopeiae
----
VY Canis majoris are already added in SE
UY Scuti are largest star 1st!
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| Salvo | Date: Sunday, 12.10.2014, 13:43 | Message # 2 |
 Star Engineer
Group: Local Moderators
Italy
Messages: 1400
Status: Offline
| I thought those stars was already on SE, and I also thought VY Canis Majoris was the biggest one... (feel kinda old  )
Are those stars recently discovered/studied?
Also, welcome to the forum!
The universe is not required to be in perfect harmony with human ambition.
CPU: Intel Core i7 4770 GPU: ASUS Radeon R9 270 RAM: 8 GBs
(still don't know why everyone is doing this...)
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| Mosfet | Date: Sunday, 12.10.2014, 16:03 | Message # 3 |
 World Builder
Group: Users
Italy
Messages: 754
Status: Offline
| I cannot check right now, but is it possible that those stars are on SE with their Hipparcos number?
for example PZ Cassiopeae has designation HIP 117078 on that catalogue.
"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
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| RockoRocks | Date: Sunday, 12.10.2014, 20:54 | Message # 4 |
 World Builder
Group: Users
Belgium
Messages: 674
Status: Offline
| Last year I have added all of these stars to SE, but never took the time to publish them. Here they are then. It also includes a couple of other supergiant stars.
Code
///////////////////////////////////////////////////////////
// Supergiant star expansion pack by RockoRocks //
// Updated 18.10.2013 //
///////////////////////////////////////////////////////////
StarBarycenter "NML Cyg/V1489 Cyg"
{
RA 20 46 25.6
Dec -40 06 59.4
Dist 1610
Class "M6 Ia"
AppMagn 16.6
}
StarBarycenter "UY Sct"
{
RA 18 27 36.5
Dec -12 27 58.8
Class "M4 Ia"
AppMagn 9.0
}
StarBarycenter "W1-26/W26/Wd 1-26"
{
RA 16 47 03.99
Dec -45 50 36.00
Dist 5500
Class "M4 Ia" // median spectral type estimate
AppMagn 16.79
}
StarBarycenter "VX Sgr/HIP 88838/HD 165674"
{
RA 18 08 04.0485
Dec -22 13 26.614
Dist 1570
Class "M5 III"
AppMagn 10.35 // actually a semiregular variable star, this is the average appmagn.
}
StarBarycenter "AH Sco/HIP 84071/HD 155161"
{
RA 17 11 17.02114
Dec -32 19 30.7132
Dist 3679.138
Class "M5 Ia"
AppMagn 12.5
}
StarBarycenter "PZ Cas/HIP 117078"
{
RA 23 44 03.28104
Dec -61 47 22.1823
Class "M3 Ia"
AppMagn 8.75
}
StarBarycenter "BI Cyg/IRC +40408"
{
RA 20 21 21.8803
Dec 36 55 55.771
Class "M3 Ia"
AppMagn 9.31
}
StarBarycenter "S Per/HD 14528/HIP 11093"
{
RA 02 22 51.709
Dec 58 31 11.45
Class "M3 Ia"
AppMagn 9.23
}
StarBarycenter "BC Cyg/HIP 100404/BD+37 3903"
{
RA 02 01 05.98
Dec 75 29 00.04
Dist 3150
Class "M3 Ia"
AppMagn 9.97
}
StarBarycenter "RT Car/HIP 52562/HIP 303310/SAO 238424"
{
RA 10 44 47.14
Dec -59 24 48.12
Dist 1966
Class "M2 Ia"
AppMagn 8.55
}
StarBarycenter "V396 Cen/HD 115283/SAO 252241"
{
RA 13 17 25.0446
Dec -61 35 02.376
Dist 5672
Class "M4 Ia"
AppMagn 7.92
}
StarBarycenter "CK Car/HD 90382/SAO 238038"
{
RA 10 24 25.3580
Dec -60 11 29.039
Dist 2176.8234
Class "M3 Ia"
AppMagn 7.59
}
StarBarycenter "V1749 Cyg/IRC +40406/GSC 02680-00828"
{
RA 20 21 14.068
Dec 35 37 16.63
Class "M2 Ia"
AppMagn 9.84
}
StarBarycenter "RS Per/HDD 14488/BD+56 583"
{
RA 02 22 24.30
Dec 57 06 34.4
Class "M4 Ia"
AppMagn 8.73
}
To install, simply copy and paste this code at the bottom of Stars.sc in your catalogs/stars/ folder.
EDIT: Distances of some stars fixed.
I will be inactive on this forum for the time being. Might come back eventually
AMD AR-3305M APU w/ Radeon HD 1.90 GHz 6,00 GB RAM
Edited by RockoRocks - Saturday, 18.10.2014, 08:46 |
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| SpaceEngineer | Date: Sunday, 12.10.2014, 22:50 | Message # 5 |
 Author of Space Engine
Group: Administrators
Russian Federation
Messages: 4800
Status: Offline
| Quote Salvo (  ) Are those stars recently discovered/studied?
Their names (UY, VX etc) are from the very ancient system of naming the variable stars. This mean that they was known for decades, if not centuries.
Quote RockoRocks ( ) To install, simply copy and paste this code at the bottom of Stars.sc in your catalogs/stars/ folder.
You forgot the planets catalog (for the stars bodies). This catalog is only the barycenters.
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| RockoRocks | Date: Monday, 13.10.2014, 17:58 | Message # 6 |
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World Builder
Group: Users
Belgium
Messages: 674
Status: Offline
| Quote SpaceEngineer ( ) You forgot the planets catalog (for the stars bodies). This catalog is only the barycenters.
Oh yes, thank you for reminding me! Here is the stars bodies' catalog:
Code
///////////////////////////////////////////////////////////
// Supergiant star catalog by RockoRocks //
// Updated 16.12.2013 //
///////////////////////////////////////////////////////////
Star "NML Cygni"
{
ParentBody "NML Cyg"
Class "M6 Ia"
AppMagn 16.60
Radius 1147575000
Mass 33
Orbit
{
Type "Static"
}
}
Star "UY Scuti"
{
ParentBody "UY Sct"
Class "M4 Ia"
AppMagn 9.0
Radius 582133500 // random median
Mass 32
Orbit
{
Type "Static"
}
}
Star "Westerlund 1-26/Westerlund 1 BKS A"
{
ParentBody "W1-26"
Class "M4 Ia"
AppMagn 9.0
Radius 708366750
Mass 34 // fictional
Orbit
{
Type "Static"
}
}
Star "VX Sagittarii"
{
ParentBody "VX Sgr"
Class "M5 III"
AppMagn 10.35
Radius 528580000 // maximum possible size, likely less
Mass 10.5 // fictional
Orbit
{
Type "Static"
}
}
Star "AH Scorpii"
{
ParentBody "AH Sco"
Class "M5 Ia"
AppMagn 12.5
Radius 490675250
Mass 30 // fictional
Orbit
{
Type "Static"
}
}
Star "PZ Cassiopeiae"
{
ParentBody "PZ Cas"
Class "M3 Ia"
AppMagn 8.75
Radius 544228750
Mass 29 // fictional
Orbit
{
Type "Static"
}
}
Star "BI Cygni"
{
ParentBody "BI Cyg"
Class "M3 Ia"
AppMagn 9.31
Radius 468919688
Mass 31 // fictional
Orbit
{
Type "Static"
}
}
Star "S Persei"
{
ParentBody "S Per"
Class "M3 Ia"
AppMagn 9.23
Radius 349488750
Mass 28 // fictional
Orbit
{
Type "Static"
}
}
Star "BC Cygni"
{
ParentBody "BC Cyg"
Class "M3 Ia"
AppMagn 9.97
Radius 443381250
Mass 20
Orbit
{
Type "Static"
}
}
Star "RT Carinae"
{
ParentBody "RT Car"
Class "M2 Ia"
AppMagn 8.55
Radius 379047500
Mass 25 // fictional
Orbit
{
Type "Static"
}
}
Star "V396 Centauri"
{
ParentBody "V396 Cen"
Class "M4 Ia"
AppMagn 7.92
Orbit
{
Type "Static"
}
}
Star "CK Carinae"
{
ParentBody "CK Car"
Class "M3 Ia"
AppMagn 7.59
Radius 737230000
Orbit
{
Type "Static"
}
}
Star "V1749 Cygni"
{
ParentBody "V1749 Cyg"
Class "M2 Ia"
AppMagn 9.84
Orbit
{
Type "Static"
}
}
Star "RS Persei"
{
ParentBody "RS Per"
Class "M4 Ia"
AppMagn 8.73
Radius 695500000
Orbit
{
Type "Static"
}
}
Copy and pase this code to Stars.sc in catalogs/planets. Make sure you copy and paste this one to the Stars.sc in the planets folder!
I will be inactive on this forum for the time being. Might come back eventually
AMD AR-3305M APU w/ Radeon HD 1.90 GHz 6,00 GB RAM
Edited by RockoRocks - Monday, 20.10.2014, 17:07 |
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| SpaceEngineer | Date: Monday, 13.10.2014, 21:33 | Message # 7 |
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Author of Space Engine
Group: Administrators
Russian Federation
Messages: 4800
Status: Offline
| RockoRocks, you may calculate the distance to the stars with missing distance data using their spectral type and appmagn. Or, much more easy, let do it SE - it can calsulate the distance automatiaclly. You can control the result in the log if you set the StarSilentLoading false in the universe.cfg.
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| Emma | Date: Friday, 17.10.2014, 20:03 | Message # 8 |
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Observer
Group: Newbies
Belgium
Messages: 7
Status: Offline
| RockoRocks Thanks you ! Added (17.10.2014, 19:03)
---------------------------------------------
RockoRocks Found a bug: NML Cygni in universe.. not Milky Way
Please some fix this star back to milky way
And the star is invisbility
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| RockoRocks | Date: Saturday, 18.10.2014, 08:49 | Message # 9 |
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World Builder
Group: Users
Belgium
Messages: 674
Status: Offline
| Quote SpaceEngineer ( ) Or, much more easy, let do it SE - it can calsulate the distance automatiaclly.
Oh thanks! I thought the star distance was something you had to fill in or the star won't appear or the game would crash or something.
Check my post for the updated catalog with random distance estimates removed.
Quote Emma ( ) RockoRocks Found a bug: NML Cygni in universe.. not Milky Way
Please some fix this star back to milky way
This is not a bug, it is simply so that this stars' distance and RA/Declination mean the Star is actually situated somewhere there. It is technically still in the Milky Way, only somewhat high above the galactic plane.
Quote Emma ( ) And the star is invisbility
This is because you have only added the Star Barycenters to your catalogs.
You must also add the code from my second post here to Stars.sc (in the planets folder). Otherwise none of the stars will be visible.
I will be inactive on this forum for the time being. Might come back eventually
AMD AR-3305M APU w/ Radeon HD 1.90 GHz 6,00 GB RAM
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| Emma | Date: Saturday, 18.10.2014, 21:29 | Message # 10 |
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Observer
Group: Newbies
Belgium
Messages: 7
Status: Offline
| RockoRocks all supergiant stars are lower diameter Why?
NML Cygni = 7.617 AU diameter
VY Canis Majoris = 18.132 AU diameter
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| Watsisname | Date: Sunday, 19.10.2014, 19:26 | Message # 11 |
 Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| Space Engine doesn't account for interstellar reddening/extinction, so in reality those stars are much more luminous and therefore larger than SE calculates them to be.
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| RockoRocks | Date: Monday, 20.10.2014, 17:05 | Message # 12 |
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World Builder
Group: Users
Belgium
Messages: 674
Status: Offline
| Maybe I put in incorrect diameter value. Which unit is star size in SpaceEngine specified in?
Also it looks like the NML Cygni's diameter is the same as its radius so just doubling the value (making it 1147575000) will fix it.
I will be inactive on this forum for the time being. Might come back eventually
AMD AR-3305M APU w/ Radeon HD 1.90 GHz 6,00 GB RAM
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| apenpaap | Date: Monday, 20.10.2014, 23:18 | Message # 13 |
 World Builder
Group: Users
Antarctica
Messages: 1063
Status: Offline
| Quote Salvo ( ) I thought those stars was already on SE, and I also thought VY Canis Majoris was the biggest one... (feel kinda old wacko )
Apparently VY was estimated bigger than it was until recently. I liked when WOH G64 was considered the largest star for a while. It allowed for "WOH, that's a big star!" puns.
I occasionally stream at http://www.twitch.tv/magistermystax. Sometimes SE, sometimes other games.
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