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Details for Revision 2
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Name
  V2500 Oph  
AAVSO UID
000-BDB-728 (13187 observations)  
Constellation
Ophiuchus Sequence
J2000.0
17 57 48.49 +04 41 36.2  (269.45204 +4.69339) Search nearby
B1950.0 17 55 20.25 +04 41 51.2
Galactic coord. 31.009 +14.063
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J17574849+0441405 AAVSO 1752+04 ASAS J175749+0441.6
BD+04 3561 Barnard's star G 140-24
GJ 699 GJ 699.0 GSC 00425-00184
GSC 00425-02502 Gaia DR3 4472832130942575872 HIP 87937
NSV 9910 TIC 325554331 TYC 425-2502-1
UCAC4 474-068224    
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Variability type
BY
Spectral type M4
Mag. range
9.55 (0.02) V
Discoverer --
Epoch
--
Outburst --
Period 130 d
Rise/eclipse dur. --
Remarks
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1 Riesen, Peter Barnard's Star has four confirmed non-transiting sub-Earth-mass planets: b (0.3 Earth masses, P = 3.15 d), c (0.34 Earth masses, P = 4.12 d), d (0.26 Earth masses, P = 2.34 d), and e (0.19 Earth masses, P = 6.74 d), detected by high-precision radial velocity measurements with MAROON-X and ESPRESSO (2025ApJ...982L...1B).
2 Otero, Sebastian Alberto VSP Note: Due to its high proper motion, this object is no longer at the charted J2000.0 position.
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References
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1 Basant, R.; Luque, R.; Bean, J. L.; et al., 2025, Four Sub-Earth Planets
Orbiting Barnard's Star from MAROON-X and ESPRESSO		 2025ApJ...982L...1B
2 M. Kiraga, K. Stepien, 2007, Acta Astronomica 57, 149 2007AcA....57..149K
3 M. Kiraga, K. Stepien, 2007, Acta Astronomica 57, 149 2007AcA....57..149K
4 Geballe, T. R.; Knapp, G. R.; Leggett, S. K.; et al., 2002, Toward Spectral
Classification of L and T Dwarfs: Infrared and Optical Spectroscopy and
Analysis		 2002ApJ...564..466G
5 G.F.Benedict, B.McArthur, E.Nelan, D.Story, A.L.Whipple, P.J.Shelus,
W.H.Jefferys, P.D.Hemenway, O.G.Franz, L.H.Wasserman, R.L.Duncombe, W.van
Altena, L.W.Fredrick, AJ 116, No.1, 429, 1998.		 1998AJ....116..429B
6 The Hipparcos and Tycho Caralogues, ESA SP-1200, 1997, Vol. 16, p. 1273. 1997yCat.1239....0E
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Supporting Documents
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Stellar Association Membership
 Collinder 359 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Riesen, Peter 2025-08-11 15:03 UTC Spectral type from 2002ApJ...564..466G. Gaia DR3 position.
2 Admin, VSX 2009-04-07 00:45 UTC Update from [2007AcA....57..149K ].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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