Русский New site

Advanced search

[ New messages · Forum rules · Members ]
Page 2 of 2«12
Forum » SpaceEngine » Space Journeys » Shortest orbit. (Find it :D)
Shortest orbit.
midtskogenDate: Saturday, 15.12.2012, 21:49 | Message # 16
Star Engineer
Group: Users
Norway
Messages: 1668
Status: Offline
Quote (HarbingerDawn)
Orbital eccentricity. And there's a difference between "changing tides" and "tidal forces". You can have tidal forces without dynamic tides. And you can have dynamic tides even if tidally locked.

Ok, you're right about eccentricity, but since locked rotation is the more stable state, wouldn't also eccentricity also eventually disappear? Our moon has locked rotation, still a slightly eccentric orbit, but I assume that it will take much longer time to approach a circular orbit since the friction from varying distance is less.

I was replying to smjjames' comment that the tidal forces and seismic activity have got to be intense. That would require a very eccentric orbit when the rotation is locked, and wouldn't that itself be unlikely because the rotation is locked?





NIL DIFFICILE VOLENTI
 
HarbingerDawnDate: Saturday, 15.12.2012, 22:18 | Message # 17
Cosmic Curator
Group: Administrators
United States
Messages: 8711
Status: Offline
Quote (midtskogen)
Ok, you're right about eccentricity, but since locked rotation is the more stable state, wouldn't also eccentricity also eventually disappear?

Not necessarily, especially if there are interactions with other massive bodies in the system (look at the Galilean satellites, for example). Even a small eccentricity can lead to great tidal stresses. And if the eccentricity is high enough, then an orbit-rotation resonance other than 1:1 could actually be preferable (for example, Mercury).





All forum users, please read this!
My SE mods and addons
Phenom II X6 1090T 3.2 GHz, 16 GB DDR3 RAM, GTX 970 3584 MB VRAM
 
UnnamedDate: Saturday, 19.01.2013, 19:24 | Message # 18
Space Pilot
Group: Users
Mexico
Messages: 115
Status: Offline
Back on thread: i found a pretty crazy system on where the closest planet is "lucky" to be there
I dont have images,but the system is HD 1537037(prodecudal planets,catalog star)





Intel® Core™ i5-3210M CPU @ 2.50GHz 2.50 GHz 750 GB hard drive 4 GB RAM intel ®HD Graphics 4000 1GB video; oh and i use a lot of commas
 
TimDate: Sunday, 20.01.2013, 10:17 | Message # 19
Explorer
Group: Users
Belgium
Messages: 296
Status: Offline
According to my SE, that star does not exist?
 
UnnamedDate: Sunday, 20.01.2013, 16:02 | Message # 20
Space Pilot
Group: Users
Mexico
Messages: 115
Status: Offline
Weird,lemme check if its the correct number
Its HD 153037
Oh...i accidently "placed" a 7





Intel® Core™ i5-3210M CPU @ 2.50GHz 2.50 GHz 750 GB hard drive 4 GB RAM intel ®HD Graphics 4000 1GB video; oh and i use a lot of commas
 
smjjamesDate: Sunday, 20.01.2013, 16:32 | Message # 21
World Builder
Group: Users
United States
Messages: 913
Status: Offline
Quote (Tim)
According to my SE, that star does not exist?


Same here.





 
UnnamedDate: Sunday, 20.01.2013, 17:30 | Message # 22
Space Pilot
Group: Users
Mexico
Messages: 115
Status: Offline
Weird...did you use the 2nd "number" i posted or the first one?




Intel® Core™ i5-3210M CPU @ 2.50GHz 2.50 GHz 750 GB hard drive 4 GB RAM intel ®HD Graphics 4000 1GB video; oh and i use a lot of commas
 
smjjamesDate: Sunday, 20.01.2013, 17:36 | Message # 23
World Builder
Group: Users
United States
Messages: 913
Status: Offline
Quote (Unnamed)
Weird...did you use the 2nd "number" i posted or the first one?


Missed your second post somehow, but yes that second one doesn't exist either as there is no 1530####

It probably has other names next to it, could you list those?

Edit: I googled the second one and it's a red giant star in the Ophiuchus constellation. Maybe I can do a search in the SE catalog index file.

Edit2: Not there either, could you make a screenshot with the HUD?







Edited by smjjames - Sunday, 20.01.2013, 17:48
 
UnnamedDate: Sunday, 20.01.2013, 18:53 | Message # 24
Space Pilot
Group: Users
Mexico
Messages: 115
Status: Offline
Its HD 153037/HIP 83021
The picture would be low quality(from IPad lol) Sorry for that





Intel® Core™ i5-3210M CPU @ 2.50GHz 2.50 GHz 750 GB hard drive 4 GB RAM intel ®HD Graphics 4000 1GB video; oh and i use a lot of commas
 
HarbingerDawnDate: Sunday, 20.01.2013, 18:58 | Message # 25
Cosmic Curator
Group: Administrators
United States
Messages: 8711
Status: Offline
Quote (Unnamed)
The picture would be low quality(from IPad lol) Sorry for that

Why didn't you just take a screenshot?





All forum users, please read this!
My SE mods and addons
Phenom II X6 1090T 3.2 GHz, 16 GB DDR3 RAM, GTX 970 3584 MB VRAM
 
UnnamedDate: Sunday, 20.01.2013, 19:00 | Message # 26
Space Pilot
Group: Users
Mexico
Messages: 115
Status: Offline
My laptop doesnt seem to be able to put an @ so i cant sign in on the laptop :/




Intel® Core™ i5-3210M CPU @ 2.50GHz 2.50 GHz 750 GB hard drive 4 GB RAM intel ®HD Graphics 4000 1GB video; oh and i use a lot of commas
 
TimDate: Sunday, 20.01.2013, 19:57 | Message # 27
Explorer
Group: Users
Belgium
Messages: 296
Status: Offline
It's probably the closest one I've seen near a red giant, but not by far the closest one near its parent.
 
R136a1Date: Monday, 21.01.2013, 05:32 | Message # 28
Observer
Group: Newbies
United States
Messages: 8
Status: Offline
The closest orbit i've seen ever is WASP2B. Which is orbiting so close to its star it is litterally getting ripped apart.




Aliens, heh. Who would've thought? One day were Causing wars and another day were finding earths!
 
Forum » SpaceEngine » Space Journeys » Shortest orbit. (Find it :D)
Page 2 of 2«12
Search: