V3804 Sgr
CONFIRMED
MILKY WAY
Constellation
Sagittarius |
Equatorial coordinates
α = 18 21 28.779
δ = -31 32 04.672 |
Galactic coordinates
l = 1.5165°
b = -8.0253° |
Suspected |
1969Ref |
Confirmed |
1969Ref |
Symbiotic IR type |
SRef |
Hot component type |
shell-burningRef |
Outbursts |
YesRef - Z And?Ref |
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|
Symbiotic Catalogs
Bidelman (1954) |
- |
Allen (1984) |
V3804 Sgr (Susp.) |
Belzcyński et al. (2001) |
V3804 Sgr (Conf.) |
Gaposchkin (1957) |
- |
Kenyon (1986) |
V3804 Sgr (Conf.) |
Akras et al. (2019) |
V3804 Sgr (Conf.) |
Boyarchuk (1969) |
- |
Vaidis (1988, 1991) |
V3804 Sgr (Conf.) |
Position
Right ascension (°) |
275.3699Ref |
Parallax (mas) |
0.142±0.038Ref |
Reddening E(B-V) (mag) |
0.21±0.0Ref, Note |
Declination (°) |
-31.5346Ref |
Distance (kpc) |
10Ref 6.57Ref, Note, 6.01Ref, Note |
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|
Galactic longitude (°) |
1.5165Ref |
Proper motion in α (mas/yr) |
-2.43±0.03Ref |
|
|
Galactic latitude (°) |
-8.0253Ref |
Proper motion in δ (mas/yr) |
-6.69±0.02Ref |
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|
Observations
X-Ray |
NoRef |
IR type |
SRef |
Radio |
YesRef |
X-Ray type |
- |
J (mag) |
8.77Ref |
Flickering |
- |
GALEX FUV (mag) |
- |
H (mag) |
7.77Ref |
Outbursts |
YesRef |
GALEX NUV (mag) |
- |
K (mag) |
7.36Ref |
Outburst type |
Z And?Ref |
IUE |
NoRef |
WISE W1 (mag) |
6.89Ref |
Jets |
- |
FUSE |
NoRef |
WISE W2 (mag) |
6.80Ref |
Resolved nebula |
- |
U (mag) |
- |
WISE W3 (mag) |
4.73Ref |
IPmax (eV) |
114Ref |
B (mag) |
12.36Ref |
WISE W4 (mag) |
3.02Ref |
[O III] lines |
YesRef |
V (mag) |
12.45Ref |
IRAS 12μm (Jy) |
0.48Ref |
He II lines |
YesRef |
R (mag) |
- |
IRAS 25μm (Jy) |
0.50Ref |
[Fe VII] lines |
NoRef |
I (mag) |
- |
IRAS 60μm (Jy) |
0.45Ref |
O VI lines |
YesRef |
BP (mag) |
11.33Ref |
IRAS 100μm (Jy) |
2.61Ref |
|
|
G (mag) |
10.86Ref |
AKARI S09 (Jy) |
0.38Ref |
|
|
RP (mag) |
10.19Ref |
AKARI S18 (Jy) |
0.40Ref |
|
|
Orbit
Orbital period (days) |
426±8Ref |
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 |
Min (V) = 2451439 + 426±8 x ERef |
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|
|
|
Cool component
Spectral type |
M6 IIIRef, M5 IIIRef |
Mass (M⊙) |
- |
Pulsation |
- |
Eff. temperature (K) |
3430Ref, 3300Ref |
Radius (R⊙) |
- |
Type |
- |
IR type |
SRef |
Luminosity (L⊙) |
- |
Pulsation period (days) |
- |
Metallicity [Fe/H] |
0.05±0.05Ref |
|
|
Pulsation ephemeris |
- |
Hot component
Type/Spectral type |
WDRef |
Mass (M⊙) |
- |
Spin period (min) |
- |
Shell-burning/Accreting-only |
shell-burningRef |
Radius (R⊙) |
- |
Accretion disk |
- |
Eff. temperature (K) |
120000-130000Ref |
Luminosity (L⊙) |
- |
|
|
Lower limit (K) |
- |
|
|
|
|
Upper limit (K) |
- |
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|
|
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Notes
In Herbig (1969), a strong continuous spectrum with intense Balmer lines, [O III], and He II was reported. The light curve covering the period from 1956 to 1975 was obtained by Brewster (1975).
References
- Allen, D. A., 1980, MNRAS, 192, 521, 1980MNRAS.192..521A
- Brewster, M., 1975, IBVS, 1032, 1, 1975IBVS.1032....1B
- Gałan, C., Mikołajewska, J., Hinkle, K. H. et al., 2017, MNRAS, 466, 2, 2194, 2017MNRAS.466.2194G
- Gromadzki, M., Mikołajewska, J., Soszyński, I., 2013, AcA, 63, 4, 405, 2013AcA....63..405G
- Gutiérrez-Moreno, A., Moreno, H., Cortes, G., 1992, PASP, 104, 1187, 1992PASP..104.1187G
- Herbig, G. H., 1969, PNAS, 63, 4, 1045, 1969PNAS...63.1045H
- Medina Tanco, G. A., Steiner, J. E., 1995, AJ, 109, 1770, 1995AJ....109.1770M
- Pereira, C. B., Landaberry, S. J. C., Da Conceição, F., 1998, AJ, 116, 4, 1971, 1998AJ....116.1971P
Last updated: April 18, 2022