[DWS97] Cet 7

LIKELY MILKY WAY
 
Constellation
Cetus
Equatorial coordinates
α = 01 09 34.844
δ = -08 00 33.098
Galactic coordinates
l = 136.4344°
b = -70.4038°

Suspected 2010Ref
Confirmed -
Symbiotic IR type S?Ref
Hot component type shell-burning?Ref
Outbursts Yes?Ref - SyN?Ref

Identifiers

[DWS97] Cet 7 IRAS - GSC2.4.2 S0NU000034 AAVSO 000-BLM-588
SIMBAD 2MASS J01093484-0800329 Pan-STARRS 98380173951599388 SAO - VSX 132036
GAIA DR3 2474999750706913536 SkyMapper 010934.83-080032.9 WRAY - GCVS -
2MASS J01093484-0800329 HIP - Hen - BD -
WISE J010934.84-080033.1 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 (°) 17.3952Ref Parallax (mas) -0.018±0.033Ref Reddening E(B-V) (mag) 0.05±0.0Ref, Note
Declination (°) -8.0092Ref Distance (kpc) 11.91Ref, Note, 7.78Ref, Note    
Galactic longitude (°) 136.4344Ref Proper motion in α (mas/yr) 0.67±0.05Ref    
Galactic latitude (°) -70.4038Ref Proper motion in δ (mas/yr) -0.55±0.05Ref    

Observations

X-Ray - IR type S?Ref Radio -
X-Ray type - J (mag) 13.70Ref Flickering -
GALEX FUV (mag) 18.18Ref H (mag) 13.38Ref Outbursts Yes?Ref
GALEX NUV (mag) 17.66Ref K (mag) 12.71Ref Outburst type SyN?Ref
IUE NoRef WISE W1 (mag) 12.06Ref Jets -
FUSE NoRef WISE W2 (mag) 11.48Ref Resolved nebula -
U (mag) - WISE W3 (mag) 9.68Ref IPmax (eV) 35.1Ref
B (mag) 15.65Ref WISE W4 (mag) 5.97Ref [O III] lines YesRef
V (mag) 15.14Ref IRAS 12μm (Jy) - He II lines NoRef
R (mag) - IRAS 25μm (Jy) - [Fe VII] lines NoRef
I (mag) - IRAS 60μm (Jy) - O VI lines NoRef
BP (mag) 15.10Ref IRAS 100μm (Jy) -
G (mag) 14.80Ref AKARI S09 (Jy) -
RP (mag) 14.23Ref 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 - Mass (M) - Pulsation -
Eff. temperature (K) - Radius (R) - Type -
IR type S?Ref Luminosity (L) - Pulsation period (days) -
Metallicity [Fe/H] -     Pulsation ephemeris -

Hot component

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

Links

SIMBAD   CDS Portal


Notes

The star was previously classified as a nova-like CV in Kopylov et al. (1988). However, in Honeycutt & Kafka (2010), it was suggested that it might be a symbiotic binary in a prolonged outburst. The spectrum shows He II in emission, in addition to Balmer lines and He I.


References


Last updated: May 31, 2021