Ross 508

Red dwarf star

Ross 508
Observation data Epoch J2000 Equinox J2000
Constellation	Serpens^[1]
Right ascension	15^h 23^m 51.13709^s^[2]
Declination	+17° 27′ 57.4439″^[2]
Apparent magnitude (V)	14.18±0.20^[3]
Characteristics
Evolutionary stage	Main sequence
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 (R_v)	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)

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^[5]
Database references
SIMBAD	data

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.^[6] In 2022 it was discovered to have a super-Earth, Ross 508 b, orbiting every 10.77 days, detected by doppler spectroscopy.^[4]

The Ross 508 planetary system^[4]
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	≥4.00+0.53 −0.55 M_🜨	0.05366+0.00056 −0.00049	10.77±0.01	0.33+0.13 −0.15	—	—

References

^ "Finding the constellation which contains given sky coordinates". djm.cc. 2 August 2008.
^ ^a ^b ^c ^d ^e ^f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
^ ^a ^b ^c "Ross 508". NASA Exoplanet Archive.
^ ^a ^b ^c ^d ^e ^f Harakawa, Hiroki; et al. (2022). "A super-Earth orbiting near the inner edge of the habitable zone around the M4.5 dwarf Ross 508". Publications of the Astronomical Society of Japan. 74 (4): 904–922. arXiv:2205.11986. Bibcode:2022PASJ...74..904H. doi:10.1093/pasj/psac044.
^ "Ross 508". SIMBAD. Centre de données astronomiques de Strasbourg.
^ Ross, Frank E. (November 1, 1925). "New proper-motion stars, (first list)". The Astronomical Journal. 36: 96–99. Bibcode:1925AJ.....36...96R. doi:10.1086/104687.

Constellation of Serpens

Bayer	α (Unukalhai) β (Chow) γ δ ε ζ η θ (Alya) ι κ (Gudja) λ μ ν ξ ο π ρ σ τ¹ τ² τ³ τ⁴ τ⁵ τ⁶ τ⁷ τ⁸ υ φ χ ψ ω
Flamsteed	3 4 5 6 7 8 10 11 (A¹) 14 16 25 (A²) 29 36 (b) 39 40 43 45 46 47 59 (d) 60 (c) 61 64 3 Her 47 Oph
Variable	R W X RT UZ VV VY WX AA AN AO AP AR AU BQ CT CV CW EG FH FI FK FL FQ FR LV LW LX MR MS MT MV MY NN NO NQ NW OO OU PS QV QX QY V382 V411
HR	5665 5690 5692 5706 5711 5740 5745 5783 5796 5831 5850 5859 5861 5874 5909 5913 5931 5992 6005 6011 6014 6016 6449 6496 6544 6562 6568 6600 6620 6666 6681 6755 6756 6757 6785 6830 6840 6843 6858 6890 6898 6928 6993 (e) 6999 7008 7048 7076 7144
HD	135061 135615 136027 136118 138085 142245 143436 145936 146740 157969 168112 168443 168746 (Alasia) 175541 (Kaveh)
Other	ADS 9544 AS 296 9 11 22 23 27 Gliese 701 Gliese 710 GJ 1224 GX 17+2 IRAS 18418-0440 MWC 297 MWC 922 PG 1510+234 PG 1605+072 PSR B1534+11 PSR J1719−1438 Ross 508 Serpens FIRS 1 Serpens SVS 20 Serpens X-1 W40 IRS 1A South

Exoplanets	CoRoT-9b CoRoT-11b CoRoT-22b CoRoT-23b CoRoT-27b HD 168746 b (Onasilos) HD 175541 b (Kavian) ω Serpentis b

Star
clusters

NGC	NGC 6535 NGC 6539 NGC 6604 NGC 6605
Other	IC 4756 Messier 5 Messier 16 Serpens OB2 Serpens South Palomar 5

Other	Abell 41 Eagle Nebula L134 L183 L483 Serpens cloud Sh2-54 Westerhout 40 Red Square Nebula S68

NGC	5887 5910 5911 5913 5919 5920 5921 5926 5928 5931 5936 5937 5940 5942 5941 5944 5951 5953 5954 5952 5956 5955 5957 5960 5962 5964 5970 5972 5975 5977 5980 5983 5984 5988 5991 5990 5994 5996 5997 6003 6004 6008 6006 6007 6009 6012 6010 6014 6020 6017 6018 6021 6022 6023 6027 6027a 6027b 6027c 6027d 6027e 6029 6033 6037 6036 6051 6063 6065 6066 6070 6080 6100 6118 6172
Other	317 318 321 323.1 324 326 Arp 72 Arp 220 4C 11.50 CGCG 049-033 Hoag's Object IRAS 15107+0724 NRAO 530 PDS 456 PG 1553+113 PGC 54493 PKS 1546+027

NGC