XX Oph

MISCLASSIFIED MILKY WAY
 
Constellation
Ophiucus
Equatorial coordinates
α = 17 43 56.498
δ = -06 16 08.845
Galactic coordinates
l = 19.4101°
b = 11.9465°

Suspected 1973Ref
Re-classified 1993Ref
Type B0 V+M7 III star (Zeta Aur/VV Cep system)Ref

Identifiers

XX Oph IRAS 17412-0614 GSC2.4.2 S7XN000022 AAVSO 000-BBZ-287
SIMBAD V* XX Oph Pan-STARRS 100472659855947602 SAO 141834 VSX 20535
GAIA DR3 4169184647552062464 SkyMapper - WRAY - GCVS XX Oph
2MASS J17435650-0616086 HIP 86777 Hen - BD -06 4638
WISE J174356.54-061609.0 TYC 5093-346-1 ESO - HD 161114

Symbiotic Catalogs

Bidelman (1954) - Allen (1984) - Belzcyński et al. (2001) -
Gaposchkin (1957) - Kenyon (1986) - Akras et al. (2019) -
Boyarchuk (1969) - Vaidis (1988, 1991) -

Position

Right ascension (°) 265.9854Ref Parallax (mas) 0.467±0.101Ref Reddening E(B-V) (mag) 0.81±0.01Ref, Note
Declination (°) -6.2691Ref Distance (kpc) 2.36Ref, Note, 2.18Ref, Note    
Galactic longitude (°) 19.4101Ref Proper motion in α (mas/yr) 1.31±0.10Ref    
Galactic latitude (°) 11.9465Ref Proper motion in δ (mas/yr) -6.28±0.07Ref    

Links

SIMBAD   CDS Portal


Notes

Mentioned as a "symbiotic object featuring deep fadings of long duration" in GCVS with a reference to Shapley & Woods (1926), this star is also listed as a possible symbiotic star by Allen (1973). The star exhibits complex spectroscopic and photometric variations, as reported in Goswami et al. (2001). According to Goswami et al. (2001), the spectrum resembles that of the known symbiotic star MWC 560. On the other hand, Evans et al. (1993) claimed that the object is more likely a Zeta Aur/VV Cep system.


References


Last updated: August 20, 2021