PN K 5-8

CONFIRMED MILKY WAY
 
Constellation
Scorpius
Equatorial coordinates
α = 17 39 17.144
δ = -35 46 59.422
Galactic coordinates
l = 353.4730°
b = -2.4679°

Suspected 2014Ref
Confirmed 2014Ref
Symbiotic IR type SRef
Hot component type shell-burningRef
Outbursts -

Identifiers

PN K 5-8 IRAS - GSC2.4.2 S8BB004239 AAVSO -
SIMBAD PN K 5-8 Pan-STARRS - SAO - VSX -
GAIA DR3 4041216852950479616 SkyMapper 173917.14-354659.2 WRAY - GCVS -
2MASS J17391715-3546593 HIP - Hen - BD -
WISE J173917.14-354659.1 TYC - ESO - HD -

Symbiotic Catalogs

Bidelman (1954) - Allen (1984) - Belzcyński et al. (2001) -
Gaposchkin (1957) - Kenyon (1986) - Akras et al. (2019) 2MASSJ17391715-3546593 (Conf.)
Boyarchuk (1969) - Vaidis (1988, 1991) -

Position

Right ascension (°) 264.8214Ref Parallax (mas) -0.166±0.137Ref Reddening E(B-V) (mag) 1.33±0.01Ref, Note
Declination (°) -35.7832Ref Distance (kpc) 7.29Ref, Note, 10.15Ref, Note    
Galactic longitude (°) 353.4730Ref Proper motion in α (mas/yr) -4.79±0.21Ref    
Galactic latitude (°) -2.4679Ref Proper motion in δ (mas/yr) -7.06±0.14Ref    

Observations

X-Ray - IR type SRef Radio -
X-Ray type - J (mag) 9.81Ref Flickering -
GALEX FUV (mag) - H (mag) 8.45Ref Outbursts -
GALEX NUV (mag) - K (mag) 7.64Ref Outburst type -
IUE NoRef WISE W1 (mag) 7.63Ref Jets -
FUSE NoRef WISE W2 (mag) 6.88Ref Resolved nebula -
U (mag) - WISE W3 (mag) 5.79Ref IPmax (eV) 114Ref
B (mag) - WISE W4 (mag) 4.76Ref [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) 18.23Ref IRAS 100μm (Jy) -
G (mag) 16.64Ref AKARI S09 (Jy) 0.25Ref
RP (mag) 15.08Ref 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 M1.5Ref Mass (M) - Pulsation -
Eff. temperature (K) - Radius (R) - Type -
IR type SRef 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-burningRef Radius (R) - Accretion disk -
Eff. temperature (K) - Luminosity (L) -    
Lower limit (K) -        
Upper limit (K) -        

Links

SIMBAD   CDS Portal


Notes

Initially believed to be a PN after its discovery, subsequent findings, as detailed in Miszalski & Mikołajewska (2014), indicated that the spectrum of PN K 5-8 does not align with the characteristics expected for a typical PN.


References


Last updated: November 5, 2019