AS 241

POSSIBLE MILKY WAY
 
Constellation
Scorpius
Equatorial coordinates
α = 17 45 14.233
δ = -38 17 25.929
Galactic coordinates
l = 351.9575°
b = -4.7938°

Suspected 1984Ref
Confirmed -
Symbiotic IR type S?Ref
Hot component type shell-burning?Ref
Outbursts -

Identifiers

AS 241 IRAS 17415-3816 GSC2.4.2 S8C9023344 AAVSO 000-BJT-864
SIMBAD EM* AS 241 Pan-STARRS - SAO - VSX 241101
GAIA DR3 5961347541020297856 SkyMapper 174514.22-381726.1 WRAY 16-302 GCVS -
2MASS J17451423-3817259 HIP - Hen - BD -
WISE J174514.23-381725.8 TYC - ESO 334-7 HD -

Symbiotic Catalogs

Bidelman (1954) - Allen (1984) H2-19 (Susp.) Belzcyński et al. (2001) AS 241 (Susp.)
Gaposchkin (1957) - Kenyon (1986) - Akras et al. (2019) AS 241 (Conf.)
Boyarchuk (1969) - Vaidis (1988, 1991) H-2-19 (Conf.)

Position

Right ascension (°) 266.3093Ref Parallax (mas) 0.136±0.036Ref Reddening E(B-V) (mag) 0.72±0.04Ref, Note
Declination (°) -38.2905Ref Distance (kpc) 6.3Ref
5.09Ref, Note, 5.25Ref, Note
   
Galactic longitude (°) 351.9575Ref Proper motion in α (mas/yr) -2.03±0.04Ref    
Galactic latitude (°) -4.7938Ref Proper motion in δ (mas/yr) -5.54±0.02Ref    

Observations

X-Ray NoRef IR type S?Ref Radio NoRef
X-Ray type - J (mag) 9.48Ref Flickering -
GALEX FUV (mag) - H (mag) 8.32Ref Outbursts -
GALEX NUV (mag) - K (mag) 7.69Ref Outburst type -
IUE NoRef WISE W1 (mag) 7.47Ref Jets -
FUSE NoRef WISE W2 (mag) 7.29Ref Resolved nebula -
U (mag) - WISE W3 (mag) 5.76Ref IPmax (eV) 24.6Ref
B (mag) - WISE W4 (mag) 4.79Ref [O III] lines NoRef
V (mag) 15.80Ref 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) 16.04Ref IRAS 100μm (Jy) -
G (mag) 14.39Ref AKARI S09 (Jy) -
RP (mag) 13.02Ref 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 IIIRef Mass (M) - Pulsation -
Eff. temperature (K) - Radius (R) - Type -
IR type S?Ref Luminosity (L) 940Ref Pulsation period (days) -
Metallicity [Fe/H] -     Pulsation ephemeris -

Hot component

Type/Spectral type WDRef Mass (M) - Spin period (min) -
Shell-burning/Accreting-only shell-burning?Ref Radius (R) - Accretion disk -
Eff. temperature (K) - Luminosity (L) 940Ref    
Lower limit (K) 25000Ref        
Upper limit (K) 35000Ref        

Links

SIMBAD   CDS Portal


Notes

Classified as a suspected symbiotic star by Allen (1984), this star displays an M1 continuum with H I and He I emission lines, as reported in Mikołajewska et al. (1997). An incorrect position is given by Belczyński et al. (2000) (no bright star at the prO VIded position). In Akras et al. (2019), the star is listed as a confirmed symbiotic system; however, the observations obtained up to now do not allow for a full confirmation of the symbiotic status.


References


Last updated: April 10, 2022