Ross 508 is a 13th magnitude red dwarf star, 11.2183 parsecs away. The Ross catalog is named after Frank Elmore Ross who published a first list of 86 high proper motion stars in 1925.[7]
In 2022 it was discovered to have a super-Earth, Ross 508 b, orbiting every 10.77 days, detected by doppler spectroscopy.[4]
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Ross 508
Observation data
Epoch J2000 Equinox J2000 |
| Constellation |
Serpens[1] |
| Right ascension |
15h 23m 51.13709s[2] |
| Declination |
+17° 27′ 57.4439″[2] |
| Apparent magnitude (V) |
14.18±0.20[3] |
| Characteristics |
| Evolutionary stage |
Main sequence[4] |
| Spectral type |
M4.5[4] |
| Apparent magnitude (V) |
14.18±0.20[3] |
| Apparent magnitude (G) |
12.195±0.003[2] |
| Apparent magnitude (J) |
9.105±0.024[4] |
| Apparent magnitude (H) |
8.620±0.032[3] |
| Apparent magnitude (K) |
8.279±0.023[4] |
| Astrometry |
|---|
|
|---|
| Radial velocity (Rv) | 42.14±0.39[2] km/s |
| Proper motion (μ) | RA: −391.919±0.034 mas/yr[2]
Dec.: −1259.296±0.034 mas/yr[2] |
| Parallax (π) | 89.1284±0.0331 mas[2] |
| Distance | 36.59 ± 0.01 ly
(11.220 ± 0.004 pc) |
| Absolute magnitude (MV) | 13.5[5] |
|
|---|
| Details[4] |
|---|
|
|---|
| Mass | 0.1774±0.0045 M☉ |
| Radius | 0.2113±0.0063 R☉ |
| Luminosity (bolometric) | 0.003589+0.000067
−0.000071 L☉ |
| Surface gravity (log g) | 5.039±0.027 cgs |
| Temperature | 3071+34
−22 K |
| Metallicity [Fe/H] | −0.20±0.20 dex |
|
|---|
| Other designations |
|---|
| GJ 585, Ci 20 930, G 137-2, G 136-103, LFT 1203, LHS 396, LSPM J1523+1727, LTT 14584, NLTT 40124, PLX 3481, PM 15216+1739, PM J15238+1727, Ross 508, TIC 400019820, 2MASS J15235112+1727569[6] |
| Database references |
|---|
| SIMBAD | data |
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