Th 3-31
CONFIRMED
MILKY WAY
Constellation
Ophiucus |
Equatorial coordinates
α = 17 34 16.801
δ = -29 29 12.197 |
Galactic coordinates
l = 358.2185°
b = 1.8035° |
| Suspected |
1979Ref |
| Confirmed |
1984Ref |
| Symbiotic IR type |
SRef |
| Hot component type |
shell-burningRef |
| Outbursts |
- |
|
|
Symbiotic Catalogs
| Bidelman (1954) |
- |
Allen (1984) |
Th3-31 (Conf.) |
Belzcyński et al. (2001) |
Th 3-31 (Conf.) |
| Gaposchkin (1957) |
- |
Kenyon (1986) |
Th3-31 (Conf.) |
Akras et al. (2019) |
PN Th 3-31 (Conf.) |
| Boyarchuk (1969) |
- |
Vaidis (1988, 1991) |
Th 3-31 (Conf.) |
Position
| Right ascension (°) |
263.5700Ref |
Parallax (mas) |
0.020±0.085Ref |
Reddening E(B-V) (mag) |
1.76±0.05Ref, Note |
| Declination (°) |
-29.4867Ref |
Distance (kpc) |
9Ref, 4.3Ref
8.20Ref, Note, 6.01Ref, Note |
|
|
| Galactic longitude (°) |
358.2185Ref |
Proper motion in α (mas/yr) |
-4.10±0.09Ref |
|
|
| Galactic latitude (°) |
1.8035Ref |
Proper motion in δ (mas/yr) |
-6.21±0.07Ref |
|
|
Observations
| X-Ray |
NoRef |
IR type |
SRef |
Radio |
NoRef |
| X-Ray type |
- |
J (mag) |
9.74Ref |
Flickering |
- |
| GALEX FUV (mag) |
- |
H (mag) |
8.53Ref |
Outbursts |
- |
| GALEX NUV (mag) |
- |
K (mag) |
7.95Ref |
Outburst type |
- |
| IUE |
NoRef |
WISE W1 (mag) |
7.26Ref |
Jets |
- |
| FUSE |
NoRef |
WISE W2 (mag) |
7.39Ref |
Resolved nebula |
- |
| U (mag) |
- |
WISE W3 (mag) |
6.90Ref |
IPmax (eV) |
114Ref |
| B (mag) |
- |
WISE W4 (mag) |
6.18Ref |
[O III] lines |
YesRef |
| V (mag) |
16.10Ref |
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) |
17.50Ref |
IRAS 100μm (Jy) |
- |
|
|
| G (mag) |
14.79Ref |
AKARI S09 (Jy) |
0.20Ref |
|
|
| RP (mag) |
13.28Ref |
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 |
M5 IIIRef |
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 |
WDRef |
Mass (M⊙) |
- |
Spin period (min) |
- |
| Shell-burning/Accreting-only |
shell-burningRef |
Radius (R⊙) |
- |
Accretion disk |
- |
| Eff. temperature (K) |
- |
Luminosity (L⊙) |
290Ref |
|
|
| Lower limit (K) |
35000Ref |
|
|
|
|
| Upper limit (K) |
55000Ref |
|
|
|
|
References
- Allen, D. A., 1979, Obs, 99, 83, 1979Obs....99...83A
- Allen, D. A., 1980, MNRAS, 192, 521, 1980MNRAS.192..521A
- Allen, D. A., 1984, PASA, 5, 3, 369, 1984PASA....5..369A
- Mikołajewska, J., Acker, A., Stenholm, B., 1997, A&A, 327, 191, 1997A&A...327..191M
- Stenholm, B., Acker, A., 1987, A&AS, 68, 51, 1987A&AS...68...51S
Last updated: April 17, 2022