OQ Her

SUSPECTED MILKY WAY
 
Constellation
Hercules
Equatorial coordinates
α = 17 57 54.441
δ = +31 25 29.820
Galactic coordinates
l = 57.1824°
b = 24.4260°

Suspected 2023Ref
Confirmed -
Symbiotic IR type -
Hot component type -
Outbursts -

Identifiers

OQ Her IRAS - GSC2.4.2 N3GY056093 AAVSO 000-BDR-253
SIMBAD V* OQ Her Pan-STARRS 145712694772400669 SAO - VSX 15115
GAIA DR3 4603019775155638400 SkyMapper - WRAY - GCVS OQ Her
2MASS J17575471+3125294 HIP - Hen - BD -
WISE J175754.71+312529.1 TYC 2608-598-1 ESO - HD -

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 (°) 269.4762Ref Parallax (mas) - Reddening E(B-V) (mag) 0.04±0.0Ref, Note
Declination (°) 31.4249Ref Distance (kpc)
-, Note
   
Galactic longitude (°) 57.1824Ref Proper motion in α (mas/yr) -    
Galactic latitude (°) 24.4260Ref Proper motion in δ (mas/yr) -    

Observations

X-Ray - IR type - Radio -
X-Ray type - J (mag) 7.26Ref Flickering -
GALEX FUV (mag) 21.17Ref H (mag) 6.43Ref Outbursts -
GALEX NUV (mag) 20.72Ref K (mag) 6.14Ref Outburst type -
IUE NoRef WISE W1 (mag) 6.12Ref Jets -
FUSE NoRef WISE W2 (mag) 6.06Ref Resolved nebula -
U (mag) - WISE W3 (mag) 5.56Ref IPmax (eV) -
B (mag) 12.69Ref WISE W4 (mag) 5.09Ref [O III] lines -
V (mag) 11.12Ref IRAS 12μm (Jy) - He II lines -
R (mag) - IRAS 25μm (Jy) - [Fe VII] lines -
I (mag) - IRAS 60μm (Jy) - O VI lines -
BP (mag) 18.77Ref IRAS 100μm (Jy) -
G (mag) 20.76Ref AKARI S09 (Jy) 0.28Ref
RP (mag) 17.19Ref 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 MRef Mass (M) - Pulsation Yes?Ref
Eff. temperature (K) - Radius (R) - Type SR?Ref
IR type - Luminosity (L) - Pulsation period (days) 371.1020341Ref
Metallicity [Fe/H] -     Pulsation ephemeris -

Hot component

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

Links

SIMBAD   CDS Portal


Notes

Suspected of having a symbiotic nature by Akras (2023). The authors employed a combination of GALEX UV photometry, 2MASS/WISE IR photometry, and the ASAS-SN variables catalog to select the candidates. In SIMBAD, it is classified as a Mira variable with a reference to GCVS, where it is listed as an SRa variable.


References


Last updated: January 31, 2023