Talk:Guaran (world)
Notes 2015[edit]
I am not sure that the following stellar classification for eyestalk is correct. Maksim-Smelchak (talk) 00:15, 19 May 2015 (EDT)
Guaran Binary Star System (Eyestalk) Star Name Hierarchy Color Classification Notes Eyestalk Secondary Red M0 D Guaran system. White dwarf. Companion.
White dwarfs usually have the prefix D:
- D (prefix) white dwarfs. Example: van Maanen 2 (DZ8)
From: Stellar_classification
- M0 D seems off. Maksim-Smelchak (talk) 00:18, 19 May 2015 (EDT)
- Older versions of Traveller, specifically Book 6, would generate a significant number of stars with type of "D". In the understanding of the time, this meant a Dwarf star. In current astrophysics is no such thing as a "M0 D" star. Either the star is a M0 V (called a dwarf star vs an Ib super-giant star), or it is a White Dwarf (per wikipieda). The latter is a problem because it would have had to have gone through it's complete stellar evolution, including expanding into giant size and cooked every planet in the system. T5 corrects this by changing every Type D start to a Type V. In this case the M0 D becomes an M0 V.
- There are also (rarely) stars of type VI. Again a historical gaming artifact generating star types which do not exist. These also should be given a type of "V". Tjoneslo (talk) 07:29, 19 May 2015 (EDT)
- Thanks, Tjoneslo! Maksim-Smelchak (talk) 07:40, 19 May 2015 (EDT)
Guran (World) T5SS Data[edit]
0827 Guaran A565800-F 010 { 3 } 11 0 149,812 4,994,800 0 0 500 6 23,720
0827 Guaran A565800-F Cp Ri - - - 010 Hv K1V M0D
Notes 2016[edit]
It is unclear from the sources whether the companion Phlaguu ("Eyestalk") is intended to be a Degenerate Dwarf (D) or a Red Dwarf (M0 V). If the former, the question needs to be considered if the earlier "giant phase" of the star's evolution at a distance of 0.682AU would have caused problems with the development of NILs on Guaran.
I am not sure of the source of the listed 0.26 MSol mass for the companion, but for a Red Dwarf star, this would likely be too small for the listed spectral type M0 V (it ought to be close to M4-5 V with a 0.26 MSol mass).
--WHULorigan (talk) 09:48, 22 July 2016 (EDT)