Objects in NGC 55 suspected of the symbiotic nature
ALL
CONFIRMED
LIKELY
POSSIBLE
SUSPECTED
MISCLASSIFIED
No. |
Star name |
Constellation |
Suspected (Year) |
Confirmed (Year) |
Right ascension (°) |
Declination (°) |
B (mag) |
V (mag) |
R (mag) |
I (mag) |
Gaia G (mag) |
Shell-burning/Accreting-only |
1 |
NGC 55 SySt-3 |
Sculptor |
2017 |
- |
3.7442 |
-39.1998 |
- |
- |
- |
- |
- |
shell-burning? |
2 |
NGC 55 SySt-2 |
Sculptor |
2017 |
- |
3.9126 |
-39.2446 |
- |
- |
- |
- |
- |
shell-burning? |
3 |
NGC 55 SySt-1 |
Sculptor |
2017 |
- |
4.0302 |
-39.2755 |
- |
- |
- |
- |
- |
shell-burning? |
No. |
Star name |
SIMBAD |
Gaia DR3 |
2MASS |
WISE |
IRAS |
Pan-STARRS |
SkyMapper |
HIP |
TYC |
GSC2.4.2 |
SAO |
WRAY |
Hen |
ESO |
AAVSO |
VSX |
GCVS |
BD |
HD |
1 |
NGC 55 SySt-3 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
S08L044882 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
2 |
NGC 55 SySt-2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
S08L043525 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
3 |
NGC 55 SySt-1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
S08S029150 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
No. |
Star name |
Bidelman (1954) |
Bidelman (1954) status |
Gaposchkin (1957) |
Gaposchkin (1957) status |
Boyarchuk (1969) |
Boyarchuk (1969) status |
Allen (1984) |
Allen (1984) status |
Kenyon (1986) |
Kenyon (1986) status |
Vaidis (1988, 1991) |
Vaidis (1988, 1991) status |
Belzcyński et al. (2001) |
Belzcyński et al. (2001) status |
Akras et al. (2019) |
Akras et al. (2019) status |
1 |
NGC 55 SySt-3 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
2 |
NGC 55 SySt-2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
3 |
NGC 55 SySt-1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
No. |
Star name |
Constellation |
Right ascension (°) |
Right ascension (HH MM SS.s) |
Declination (°) |
Declination (DD MM SS.s) |
Galactic longitude (°) |
Galactic latitude (°) |
Parallax (mas) |
Distance (kpc) |
Geometric distance (kpc) |
Photogeometric distance (kpc) |
Proper motion in right ascension (mas/yr) |
Proper motion in declination (mas/yr) |
Reddening E(B-V) (mag) |
1 |
NGC 55 SySt-3 |
Sculptor |
3.7442 |
00 14 58.610 |
-39.1998 |
-39 11 59.140 |
332.8210 |
-75.7376 |
- |
2340 |
- |
- |
- |
- |
0.01 |
2 |
NGC 55 SySt-2 |
Sculptor |
3.9126 |
00 15 39.020 |
-39.2446 |
-39 14 40.600 |
332.2811 |
-75.7747 |
- |
2340 |
- |
- |
- |
- |
0.01 |
3 |
NGC 55 SySt-1 |
Sculptor |
4.0302 |
00 16 07.250 |
-39.2755 |
-39 16 31.910 |
331.9032 |
-75.8001 |
- |
2340 |
- |
- |
- |
- |
0.01 |
No. |
Star name |
X-ray detection |
X-ray type |
GALEX FUV (mag) |
GALEX NUV (mag) |
IUE |
FUSE |
U (mag) |
B (mag) |
V (mag) |
R (mag) |
I (mag) |
Gaia BP (mag) |
Gaia G (mag) |
Gaia RP (mag) |
IR type |
J (mag) |
H (mag) |
K (mag) |
WISE W1 (mag) |
WISE W2 (mag) |
WISE W3 (mag) |
WISE W4 (mag) |
IRAS 12μm (Jy) |
IRAS 25μm (Jy) |
IRAS 60μm (Jy) |
IRAS 100μm (Jy) |
AKARI S09 (Jy) |
AKARI S18 (Jy) |
Radio detection |
Flickering |
Outbursts |
Outburst type |
Jets |
Resolved nebula |
IPmax (eV) |
[O III] lines |
He II lines |
[Fe VII] lines |
O VI lines |
1 |
NGC 55 SySt-3 |
- |
- |
- |
- |
No |
No |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
2 |
NGC 55 SySt-2 |
- |
- |
- |
- |
No |
No |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
3 |
NGC 55 SySt-1 |
- |
- |
- |
- |
No |
No |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
No. |
Star name |
Orbital period (days) |
Eccentricity |
Inclination (°) |
Eclipses |
γ velocity (km/h) |
RV of the giant (km/h) |
Inferior conj. of the giant (JD) |
Size of the giant’s orbit (AU) |
Separation (AU) |
Mass function |
Mass ratio |
1 |
NGC 55 SySt-3 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
2 |
NGC 55 SySt-2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
3 |
NGC 55 SySt-1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
No. |
Star name |
Spectral type of the giant |
Effective temperature of the giant (K) |
Metallicity [Fe/H] |
Mass of the giant (M⊙) |
Radius of the giant (R⊙) |
Luminosity of the giant (L⊙) |
Pulsations |
Pulsation type |
Pulsation period (days) |
1 |
NGC 55 SySt-3 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
2 |
NGC 55 SySt-2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
3 |
NGC 55 SySt-1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
No. |
Star name |
Hot component type |
Shell-burning/Accreting-only |
Effective temperature of the hot component (K) |
Lower limit (K) |
Upper limit (K) |
Mass of the hot component (M⊙) |
Radius of the hot component (R⊙) |
Luminosity of the hot component (L⊙) |
Spin period (min) |
Accretion disk |
1 |
NGC 55 SySt-3 |
- |
shell-burning? |
- |
- |
- |
- |
- |
- |
- |
- |
2 |
NGC 55 SySt-2 |
- |
shell-burning? |
- |
- |
- |
- |
- |
- |
- |
- |
3 |
NGC 55 SySt-1 |
- |
shell-burning? |
- |
- |
- |
- |
- |
- |
- |
- |