KV Hya

SUSPECTED MILKY WAY
 
Constellation
Hydra
Equatorial coordinates
α = 12 24 32.795
δ = -26 14 08.804
Galactic coordinates
l = 295.4507°
b = 36.2450°

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

Identifiers

KV Hya IRAS - GSC2.4.2 S6NY000087 AAVSO 000-BDS-124
SIMBAD V* KV Hya Pan-STARRS 76511861366877784 SAO - VSX 16214
GAIA DR3 3476381202654649984 SkyMapper 122432.81-261408.3 WRAY - GCVS KV Hya
2MASS J12243280-2614081 HIP - Hen - BD -
WISE J122432.79-261408.2 TYC - 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 (°) 186.1367Ref Parallax (mas) 0.176±0.019Ref Reddening E(B-V) (mag) 0.07±0.0Ref, Note
Declination (°) -26.2357Ref Distance (kpc) 4.80Ref, Note, 4.51Ref, Note    
Galactic longitude (°) 295.4507Ref Proper motion in α (mas/yr) -4.03±0.02Ref    
Galactic latitude (°) 36.2450Ref Proper motion in δ (mas/yr) -4.01±0.02Ref    

Observations

X-Ray - IR type - Radio -
X-Ray type - J (mag) 8.43Ref Flickering -
GALEX FUV (mag) 16.14Ref H (mag) 7.59Ref Outbursts -
GALEX NUV (mag) 15.60Ref K (mag) 7.22Ref Outburst type -
IUE NoRef WISE W1 (mag) 7.00Ref Jets -
FUSE NoRef WISE W2 (mag) 7.09Ref Resolved nebula -
U (mag) - WISE W3 (mag) 6.80Ref IPmax (eV) -
B (mag) 13.64Ref WISE W4 (mag) 6.83Ref [O III] lines -
V (mag) 11.55Ref IRAS 12μm (Jy) - He II lines -
R (mag) 11.17Ref IRAS 25μm (Jy) - [Fe VII] lines -
I (mag) 9.79Ref IRAS 60μm (Jy) - O VI lines -
BP (mag) 11.97Ref IRAS 100μm (Jy) -
G (mag) 10.94Ref AKARI S09 (Jy) 0.12Ref
RP (mag) 9.92Ref 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 CRef Mass (M) - Pulsation Yes?Ref
Eff. temperature (K) - Radius (R) - Type SR?Ref
IR type - Luminosity (L) - Pulsation period (days) 90.7332789Ref
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.


References


Last updated: January 31, 2023