SUSPECTED NGC55
Equatorial coordinates
α = 4.030208 | 00 16 07.250000
δ = -39.275531 | -39 16 31.910000 |
|
| Constellation |
Sculptor |
| Symbiotic IR Type |
|
| Spectral Type |
|
| Magnitude range (V) |
|
| Outbursts |
No |
|
|
Identifiers
| NGC 55 SySt-1 |
GSC – |
TYC – |
WRAY – |
| SIMBAD – |
HIP – |
SAO – |
Hen – |
| BD – |
IRAS – |
GAIA DR2 – |
ESO – |
| HD – |
2MASS – |
WISE – |
AAVSO – |
Position
| Right ascension (°) |
4.030208 |
Parallax (mas) |
– |
Reddening E(B-V) (mag) |
0.013 ± 0.001 |
| Declination (°) |
-39.275531 |
Distance (kpc) |
2340 ± 200 |
|
|
| Galactic longitude (°) |
331.903228 |
Proper motion in α (mas/yr) |
– |
|
|
| Galactic latitude (°) |
-75.800139 |
Proper motion in δ (mas/yr) |
– |
|
|
Observations
| U (mag) |
|
X-Ray |
|
Flickering |
|
| B (mag) |
|
X-Ray type |
|
Outbursts |
No |
| V (mag) |
|
IUE |
No |
Type |
|
| R (mag) |
|
IRAS flux at 12 μm (Jy) |
|
IPmax (eV) |
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| I (mag) |
|
IRAS flux at 25 μm (Jy) |
|
OVI lines |
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| G (mag) |
|
IRAS flux at 60 μm (Jy) |
|
|
|
| J (mag) |
|
IRAS flux at 100 μm (Jy) |
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|
|
| H (mag) |
|
WISE W1 (mag) |
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|
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| K (mag) |
|
WISE W2 (mag) |
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|
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| L (mag) |
|
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) |
|
γ velocity (km/h) |
|
Size of giant’s orbit (AU) |
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| Eccentricity |
|
RV of giant (km/h) |
|
Separation (AU) |
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| Inclination (°) |
|
Inferior conj. of giant (JD) |
|
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 |
|
Mass (M⊙) |
|
Pulsation |
|
| Eff. temperature (K) |
|
Radius (R⊙) |
|
Type |
|
| IR type |
|
Luminosity (L⊙) |
|
Pulsation period (days) |
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| Metallicity [Fe/H] |
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|
|
Ephemeris type |
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| |
|
|
|
Ephemeris T0 (JD) |
|
Hot component
| Type/Spectra |
|
Mass (M⊙) |
|
Spin period (min) |
|
| Eff. temperature (K) |
|
Radius (R⊙) |
|
Accretion disk |
|
| Lower limit (K) |
|
Luminosity (L⊙) |
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|
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| Upper limit (K) |
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Links
Notes
Suspected to be a symbiotic binary in Magrini et al. (2017).
References
- Magrini, L., Goncalves, D. R., Vajgel, B., 2017, MNRAS, 464, 739, 2017MNRAS.464..739M
Last updated: May 12, 2019 @ 9:21 pm
