SS73 38
CONFIRMED
MILKY WAY
Constellation
Musca |
Equatorial coordinates
α = 12 51 26.173
δ = -64 59 58.013 |
Galactic coordinates
l = 302.9317°
b = -2.1277° |
Suspected |
1972Ref |
Confirmed |
1972Ref |
Symbiotic IR type |
DRef |
Hot component type |
shell-burningRef |
Outbursts |
- |
|
|
Symbiotic Catalogs
Bidelman (1954) |
- |
Allen (1984) |
SS 38 (Conf.) |
Belzcyński et al. (2001) |
SS73 38 (Conf.) |
Gaposchkin (1957) |
- |
Kenyon (1986) |
SS 38 (Conf.) |
Akras et al. (2019) |
SS73 38 (Conf.) |
Boyarchuk (1969) |
- |
Vaidis (1988, 1991) |
-64°665 (Conf.) |
Position
Right ascension (°) |
192.8591Ref |
Parallax (mas) |
0.445±0.066Ref |
Reddening E(B-V) (mag) |
1.19±0.07Ref, Note |
Declination (°) |
-64.9994Ref |
Distance (kpc) |
4.8Ref 2.19Ref, Note, 2.00Ref, Note |
|
|
Galactic longitude (°) |
302.9317Ref |
Proper motion in α (mas/yr) |
-5.18±0.06Ref |
|
|
Galactic latitude (°) |
-2.1277Ref |
Proper motion in δ (mas/yr) |
-1.26±0.08Ref |
|
|
Observations
X-Ray |
- |
IR type |
DRef |
Radio |
YesRef |
X-Ray type |
- |
J (mag) |
9.35Ref |
Flickering |
- |
GALEX FUV (mag) |
- |
H (mag) |
7.43Ref |
Outbursts |
- |
GALEX NUV (mag) |
- |
K (mag) |
5.92Ref |
Outburst type |
- |
IUE |
NoRef |
WISE W1 (mag) |
4.60Ref |
Jets |
- |
FUSE |
NoRef |
WISE W2 (mag) |
3.47Ref |
Resolved nebula |
- |
U (mag) |
- |
WISE W3 (mag) |
1.90Ref |
IPmax (eV) |
108.8Ref |
B (mag) |
14.13Ref |
WISE W4 (mag) |
1.33Ref |
[O III] lines |
YesRef |
V (mag) |
13.81Ref |
IRAS 12μm (Jy) |
7.71Ref |
He II lines |
YesRef |
R (mag) |
- |
IRAS 25μm (Jy) |
3.29Ref |
[Fe VII] lines |
YesRef |
I (mag) |
- |
IRAS 60μm (Jy) |
1.88Ref |
O VI lines |
NoRef |
BP (mag) |
14.42Ref |
IRAS 100μm (Jy) |
19.50Ref |
|
|
G (mag) |
13.54Ref |
AKARI S09 (Jy) |
6.16Ref |
|
|
RP (mag) |
12.37Ref |
AKARI S18 (Jy) |
3.09Ref |
|
|
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 |
C9Ref |
Mass (M⊙) |
- |
Pulsation |
YesRef |
Eff. temperature (K) |
- |
Radius (R⊙) |
- |
Type |
MiraRef |
IR type |
DRef |
Luminosity (L⊙) |
- |
Pulsation period (days) |
463Ref |
Metallicity [Fe/H] |
- |
|
|
Pulsation ephemeris |
Max (JHKL) = 2444983 + 463 x ERef |
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) |
- |
|
|
|
|
Notes
Featurless continuum with Balmer lines, [O III], and He II lines were detected in the spectrum of this object (Weaver, 1972). The symbiotic nature of the star was further supported by Sanduleak & Stephenson (1973).
References
- Allen, D. A., 1984, PASA, 5, 3, 369, 1984PASA....5..369A
- Angeloni, R., Contini, M., Ciroi, S. et al., 2010, MNRAS, 402, 3, 2075, 2010MNRAS.402.2075A
- Gromadzki, M., Mikołajewska, J., Whitelock, P. et al., 2009, AcA, 59, 2, 169, 2009AcA....59..169G
- Sanduleak, N., Stephenson, C. B., 1973, ApJ, 185, 899, 1973ApJ...185..899S
- Schulte-Landbeck, R. E., Macconnell, D. J., Zarate, N., 1988, IAU Colloq. 103: The Symbiotic Phenomenon, 145, 295, 1988ASSL..145..295S
- Weaver, W. B., 1972, PASP, 84, 502, 854, 1972PASP...84..854W
- Whitelock, P. A., 1987, PASP, 99, 573, 1987PASP...99..573W
Last updated: April 17, 2022