SUSPECTED SMC
Equatorial coordinates
α = 12.306827 ± 0.039312 | 00 49 13.635654
δ = -72.908015 ± 0.028180 | -72 54 28.835855 |
|
Constellation |
Tucana |
Symbiotic IR Type |
S? |
Spectral Type |
SC3 |
Magnitude range (V) |
14.2 – 18: |
Outbursts |
No |
|
|
Identifiers
Position
Right ascension (°) |
12.306827 ± 0.039312 |
Parallax (mas) |
– |
Reddening E(B-V) (mag) |
0.550 ± 0.071 |
Declination (°) |
-72.908015 ± 0.028180 |
Distance (kpc) |
62.10 ± 1.90 |
|
|
Galactic longitude (°) |
303.158563 ± 0.028180 |
Proper motion in α (mas/yr) |
0.817996 ± 0.085332 |
|
|
Galactic latitude (°) |
-44.219267 ± 0.039312 |
Proper motion in δ (mas/yr) |
-1.173952 ± 0.058426 |
|
|
Observations
U (mag) |
|
X-Ray |
No? |
Flickering |
|
B (mag) |
17.80 |
X-Ray type |
|
Outbursts |
No |
V (mag) |
16.24 |
IUE |
No |
Type |
|
R (mag) |
|
IRAS flux at 12 μm (Jy) |
|
IPmax (eV) |
24.6 |
I (mag) |
13.65 |
IRAS flux at 25 μm (Jy) |
|
OVI lines |
No |
G (mag) |
15.06 |
IRAS flux at 60 μm (Jy) |
|
|
|
J (mag) |
12.05 |
IRAS flux at 100 μm (Jy) |
|
|
|
H (mag) |
10.98 |
WISE W1 (mag) |
10.31 |
|
|
K (mag) |
10.47 |
WISE W2 (mag) |
10.05 |
|
|
L (mag) |
|
WISE W3 (mag) |
9.36 |
|
|
|
|
WISE W4 (mag) |
8.51 |
|
|
|
|
Radio |
|
|
|
|
|
Radio flux (mJy) |
|
|
|
Orbit
Orbital period (days) |
395 |
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 |
|
Ephemeris type |
Max(V) |
|
|
Mass ratio |
|
Ephemeris T0 (JD) |
2440843 |
|
|
|
|
Cool component
Spectral type |
SC3 |
Mass (M⊙) |
|
Pulsation |
|
Eff. temperature (K) |
|
Radius (R⊙) |
|
Type |
|
IR type |
S? |
Luminosity (L⊙) |
|
Pulsation period (days) |
|
Metallicity [Fe/H] |
|
|
|
Ephemeris type |
|
|
|
|
|
Ephemeris T0 (JD) |
|
Hot component
Type/Spectra |
|
Mass (M⊙) |
|
Spin period (min) |
|
Eff. temperature (K) |
|
Radius (R⊙) |
|
Accretion disk |
|
Lower limit (K) |
|
Luminosity (L⊙) |
|
|
|
Upper limit (K) |
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|
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Links
SIMBAD CDS Portal
Notes
Classified as a possible symbiotic star or closely related object in Munari & Zwitter (2002). In SIMBAD incorrectly classified as a confirmed symbiotic star with the reference to the beforementioned paper.
References
- Evans, T. L.,1985, MNRAS, 212, 955, 1985MNRAS.212..955E
- Evans, T. L., Glass, I. S., Catchpole, R., M., 1988, MNRAS, 231, 773, 1988MNRAS.231..773L
- Munari, U., Zwitter, T., 2002, A&A, 383, 188, 2002A&A…383..188M
Last updated: Jan 14, 2019 @ 11:35 am