CONFIRMED M31
Equatorial coordinates
α = 10.087900 | 00 40 21.096000
δ = 40.750301 | +40 45 01.085000 |
|
| Constellation |
Andromeda |
| Symbiotic IR Type |
S |
| Spectral Type |
M |
| Magnitude range (V) |
|
| Outbursts |
No |
|
|
Identifiers
| M31SyS J004021.10+404501.1 |
GSC – |
TYC – |
WRAY – |
| SIMBAD LGGS J004021.11+404501.2 |
HIP – |
SAO – |
Hen – |
| BD – |
IRAS – |
GAIA DR2 – |
ESO – |
| HD – |
2MASS – |
WISE – |
AAVSO – |
Position
| Right ascension (°) |
10.087900 |
Parallax (mas) |
– |
Reddening E(B-V) (mag) |
0.269 ± 0.062 |
| Declination (°) |
40.750301 |
Distance (kpc) |
785.00 ± 25.00 |
|
|
| Galactic longitude (°) |
120.666513 |
Proper motion in α (mas/yr) |
– |
|
|
| Galactic latitude (°) |
-22.072679 |
Proper motion in δ (mas/yr) |
– |
|
|
Observations
| U (mag) |
22.60 |
X-Ray |
|
Flickering |
|
| B (mag) |
24.01 |
X-Ray type |
|
Outbursts |
No |
| V (mag) |
23.03 |
IUE |
No |
Type |
|
| R (mag) |
|
IRAS flux at 12 μm (Jy) |
|
IPmax (eV) |
54.4 |
| I (mag) |
20.42 |
IRAS flux at 25 μm (Jy) |
|
OVI lines |
No |
| G (mag) |
|
IRAS flux at 60 μm (Jy) |
|
|
|
| J (mag) |
|
IRAS flux at 100 μm (Jy) |
|
|
|
| H (mag) |
|
WISE W1 (mag) |
|
|
|
| K (mag) |
|
WISE W2 (mag) |
|
|
|
| L (mag) |
|
WISE W3 (mag) |
|
|
|
| |
|
WISE W4 (mag) |
|
|
|
| |
|
Radio |
|
|
|
| |
|
Radio flux (mJy) |
|
|
|
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 |
|
| Ephemeris type |
|
|
|
Mass ratio |
|
| Ephemeris T0 (JD) |
|
|
|
|
|
Cool component
| Spectral type |
M |
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) |
54000 |
Luminosity (L⊙) |
|
|
|
| Upper limit (K) |
160000 |
|
|
|
|
Links
SIMBAD CDS Portal
Notes
Classification as an S type should be confirmed by near-IR observations (Mikołajewska et al., 2014).
References
- Mikołajewska, J., Caldwell, N., Shara, M. M., 2014, MNRAS, 444, 586, 2014MNRAS.444..586M
Last updated: Jan 12, 2019 @ 2:40 pm
