V2110 Oph

CONFIRMED MILKY WAY
 
Constellation
Ophiucus
Equatorial coordinates
α = 17 43 33.316
δ = -22 45 36.971
Galactic coordinates
l = 5.0288°
b = 3.6197°

Suspected 1950Ref
Confirmed 1978Ref
Symbiotic IR type DRef, SRef
Hot component type shell-burningRef
Outbursts YesRef - SyN?Ref

Identifiers

V2110 Oph IRAS - GSC2.4.2 S8JT413045 AAVSO 000-BBZ-283
SIMBAD EM* AS 239 Pan-STARRS 80682658888358027 SAO - VSX 22596
GAIA DR3 4116907164716691200 SkyMapper - WRAY - GCVS V2110 Oph
2MASS J17433332-2245370 HIP - Hen 3-1465 BD -
WISE J174333.31-224536.8 TYC - ESO - HD -

Symbiotic Catalogs

Bidelman (1954) - Allen (1984) AS 239 (Conf.) Belzcyński et al. (2001) V2110 Oph (Conf.)
Gaposchkin (1957) - Kenyon (1986) V2110 Oph (Conf.) Akras et al. (2019) V2110 Oph (Conf.)
Boyarchuk (1969) MHa 79-52 (Susp.) Vaidis (1988, 1991) V2110 Oph (Conf.)

Position

Right ascension (°) 265.8888Ref Parallax (mas) 0.079±0.150Ref Reddening E(B-V) (mag) 0.86±0.06Ref, Note
Declination (°) -22.7603Ref Distance (kpc) 6.43Ref, Note, 11.95Ref, Note    
Galactic longitude (°) 5.0288Ref Proper motion in α (mas/yr) -4.68±0.15Ref    
Galactic latitude (°) 3.6197Ref Proper motion in δ (mas/yr) -3.11±0.09Ref    

Observations

X-Ray NoRef IR type DRef, SRef Radio YesRef
X-Ray type - J (mag) 9.80Ref Flickering -
GALEX FUV (mag) - H (mag) 8.39Ref Outbursts YesRef
GALEX NUV (mag) - K (mag) 7.64Ref Outburst type SyN?Ref
IUE NoRef WISE W1 (mag) 7.14Ref Jets -
FUSE NoRef WISE W2 (mag) 6.86Ref Resolved nebula NoRef
U (mag) - WISE W3 (mag) 5.70Ref IPmax (eV) 114Ref
B (mag) - WISE W4 (mag) 5.06Ref [O III] lines YesRef
V (mag) - IRAS 12μm (Jy) - He II lines YesRef
R (mag) - IRAS 25μm (Jy) - [Fe VII] lines YesRef
I (mag) - IRAS 60μm (Jy) - O VI lines YesRef
BP (mag) 20.40Ref IRAS 100μm (Jy) -
G (mag) 17.10Ref AKARI S09 (Jy) 0.34Ref
RP (mag) 15.37Ref AKARI S18 (Jy) -

Orbit

Orbital period (days) - γ velocity (km/h) - Size of giant’s orbit (AU) -
Eccentricity - RV of giant (km/h) - Separation (AU) -
Inclination (°) - Inferior conj. of giant (JD) - Mass function -
Eclipses -     Mass ratio -
Orbital ephemeris -        

Cool component

Spectral type M8 IIIRef Mass (M) - Pulsation YesRef
Eff. temperature (K) - Radius (R) - Type MiraRef
IR type DRef, SRef Luminosity (L) - Pulsation period (days) 192.8Ref
Metallicity [Fe/H] -     Pulsation ephemeris -

Hot component

Type/Spectral type - Mass (M) - Spin period (min) -
Shell-burning/Accreting-only shell-burningRef Radius (R) - Accretion disk -
Eff. temperature (K) - Luminosity (L) -    
Lower limit (K) -        
Upper limit (K) -        

Links

SIMBAD   CDS Portal


Notes

In Allen (1978), it was reported that the star experienced an outburst of at least 7 magnitudes, and the decline of this outburst took at least around 30 years.


References


Last updated: April 18, 2022