DQ Ser
CONFIRMED
MILKY WAY
Constellation
Serpens |
Equatorial coordinates
α = 18 44 39.624
δ = +05 02 48.995 |
Galactic coordinates
l = 36.6592°
b = 3.8031° |
Suspected |
1997Ref |
Confirmed |
1997Ref |
Symbiotic IR type |
SRef |
Hot component type |
shell-burningRef |
Outbursts |
- |
|
|
Symbiotic Catalogs
Bidelman (1954) |
- |
Allen (1984) |
- |
Belzcyński et al. (2001) |
DQ Ser (Conf.) |
Gaposchkin (1957) |
- |
Kenyon (1986) |
- |
Akras et al. (2019) |
DQ Ser (Conf.) |
Boyarchuk (1969) |
- |
Vaidis (1988, 1991) |
- |
Position
Right ascension (°) |
281.1651Ref |
Parallax (mas) |
0.036±0.034Ref |
Reddening E(B-V) (mag) |
1.02±0.02Ref, Note |
Declination (°) |
5.0469Ref |
Distance (kpc) |
8.85Ref, Note, 6.29Ref, Note |
|
|
Galactic longitude (°) |
36.6592Ref |
Proper motion in α (mas/yr) |
-3.71±0.04Ref |
|
|
Galactic latitude (°) |
3.8031Ref |
Proper motion in δ (mas/yr) |
-5.54±0.04Ref |
|
|
Observations
X-Ray |
NoRef |
IR type |
SRef |
Radio |
- |
X-Ray type |
- |
J (mag) |
9.39Ref |
Flickering |
- |
GALEX FUV (mag) |
- |
H (mag) |
8.29Ref |
Outbursts |
- |
GALEX NUV (mag) |
- |
K (mag) |
7.81Ref |
Outburst type |
- |
IUE |
NoRef |
WISE W1 (mag) |
7.58Ref |
Jets |
- |
FUSE |
NoRef |
WISE W2 (mag) |
7.66Ref |
Resolved nebula |
- |
U (mag) |
- |
WISE W3 (mag) |
7.27Ref |
IPmax (eV) |
54.4Ref |
B (mag) |
15.84Ref |
WISE W4 (mag) |
6.81Ref |
[O III] lines |
YesRef |
V (mag) |
14.49Ref |
IRAS 12μm (Jy) |
- |
He II lines |
YesRef |
R (mag) |
14.21Ref |
IRAS 25μm (Jy) |
- |
[Fe VII] lines |
NoRef |
I (mag) |
- |
IRAS 60μm (Jy) |
- |
O VI lines |
NoRef |
BP (mag) |
15.59Ref |
IRAS 100μm (Jy) |
- |
|
|
G (mag) |
13.43Ref |
AKARI S09 (Jy) |
- |
|
|
RP (mag) |
12.07Ref |
AKARI S18 (Jy) |
- |
|
|
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 |
- |
Eclipses |
- |
|
|
Mass ratio |
- |
Orbital ephemeris |
- |
|
|
|
|
Cool component
Spectral type |
M3Ref |
Mass (M⊙) |
- |
Pulsation |
- |
Eff. temperature (K) |
- |
Radius (R⊙) |
- |
Type |
- |
IR type |
SRef |
Luminosity (L⊙) |
- |
Pulsation period (days) |
- |
Metallicity [Fe/H] |
- |
|
|
Pulsation ephemeris |
- |
Hot component
Type/Spectral type |
M3-5Ref |
Mass (M⊙) |
- |
Spin period (min) |
- |
Shell-burning/Accreting-only |
shell-burningRef |
Radius (R⊙) |
- |
Accretion disk |
- |
Eff. temperature (K) |
- |
Luminosity (L⊙) |
- |
|
|
Lower limit (K) |
- |
|
|
|
|
Upper limit (K) |
- |
|
|
|
|
References
- Cieslinski, D., Steiner, J. E., Elizalde, F. et al., 1997, A&AS, 124, 57, 1997A&AS..124...57C
- Cieslinski, D., Steiner, J. E., Jablonski, F. J., 1998, A&AS, 131, 119, 1998A&AS..131..119C
Last updated: May 5, 2021