CONFIRMED NGC 185
Equatorial coordinates
α = 9.751517 | 00 39 00.364000
δ = 48.324047 | +48 19 26.570000 |
|
| Constellation |
Cassiopeia |
| Symbiotic IR Type |
S |
| Spectral Type |
|
| Magnitude range (V) |
|
| Outbursts |
No |
|
|
Identifiers
| NGC 185 SySt-1 |
GSC – |
TYC – |
WRAY – |
| SIMBAD NAME NGC 185 SySt-1 |
HIP – |
SAO – |
Hen – |
| BD – |
IRAS – |
GAIA DR2 – |
ESO – |
| HD – |
2MASS – |
WISE – |
AAVSO – |
Position
| Right ascension (°) |
9.751517 |
Parallax (mas) |
– |
Reddening E(B-V) (mag) |
0.154 ± 0.007 |
| Declination (°) |
48.324047 |
Distance (kpc) |
630.00 ± 40.00 |
|
|
| Galactic longitude (°) |
120.797983 |
Proper motion in α (mas/yr) |
– |
|
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| Galactic latitude (°) |
-14.496186 |
Proper motion in δ (mas/yr) |
– |
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Observations
| U (mag) |
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X-Ray |
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Flickering |
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| B (mag) |
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X-Ray type |
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Outbursts |
No |
| V (mag) |
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IUE |
No |
Type |
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| R (mag) |
|
IRAS flux at 12 μm (Jy) |
|
IPmax (eV) |
114.0 |
| I (mag) |
|
IRAS flux at 25 μm (Jy) |
|
OVI lines |
Yes |
| G (mag) |
|
IRAS flux at 60 μm (Jy) |
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| J (mag) |
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IRAS flux at 100 μm (Jy) |
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| H (mag) |
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WISE W1 (mag) |
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| K (mag) |
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WISE W2 (mag) |
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| L (mag) |
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WISE W3 (mag) |
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WISE W4 (mag) |
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Radio |
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Radio flux (mJy) |
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Orbit
| Orbital period (days) |
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γ velocity (km/h) |
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Size of giant’s orbit (AU) |
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| Eccentricity |
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RV of giant (km/h) |
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Separation (AU) |
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| Inclination (°) |
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Inferior conj. of giant (JD) |
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Mass function |
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| Ephemeris type |
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Mass ratio |
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| Ephemeris T0 (JD) |
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Cool component
| Spectral type |
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Mass (M⊙) |
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Pulsation |
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| Eff. temperature (K) |
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Radius (R⊙) |
|
Type |
|
| IR type |
S |
Luminosity (L⊙) |
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Pulsation period (days) |
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| Metallicity [Fe/H] |
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Ephemeris type |
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Ephemeris T0 (JD) |
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Hot component
| Type/Spectra |
|
Mass (M⊙) |
|
Spin period (min) |
|
| Eff. temperature (K) |
82800 |
Radius (R⊙) |
|
Accretion disk |
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| Lower limit (K) |
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Luminosity (L⊙) |
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| Upper limit (K) |
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Links
SIMBAD CDS Portal
Notes
NGC 185 SySt-1 possesses a broad emission feature at 6830 Å and does not show forbidden lines in its spectrum, an S-type symbiotic class is suggested for this star (Gonçalves et al., 2012).
References
- Gonçalves, D. R., Magrini, L., Martins, L. P., et al., 2012, MNRAS, 419, 854, 2012MNRAS.419..854G
Last updated: Jan 13, 2019 @ 11:09 am
