IRAS F19019-1733
POSSIBLE
MILKY WAY
Constellation
Sagittarius |
Equatorial coordinates
α = 19 04 51.806
δ = -17 28 40.013 |
Galactic coordinates
l = 18.6817°
b = -10.7573° |
Suspected |
2020Ref |
Confirmed |
- |
Symbiotic IR type |
S?Ref |
Hot component type |
accreting-only?Ref |
Outbursts |
- |
|
|
Symbiotic Catalogs
Bidelman (1954) |
- |
Allen (1984) |
- |
Belzcyński et al. (2001) |
- |
Gaposchkin (1957) |
- |
Kenyon (1986) |
- |
Akras et al. (2019) |
- |
Boyarchuk (1969) |
- |
Vaidis (1988, 1991) |
- |
Position
Right ascension (°) |
286.2159Ref |
Parallax (mas) |
0.002±0.090Ref |
Reddening E(B-V) (mag) |
0.17±0.0Ref, Note |
Declination (°) |
-17.4778Ref |
Distance (kpc) |
7.49Ref, Note, 6.58Ref, Note |
|
|
Galactic longitude (°) |
18.6817Ref |
Proper motion in α (mas/yr) |
-4.57±0.09Ref |
|
|
Galactic latitude (°) |
-10.7573Ref |
Proper motion in δ (mas/yr) |
-4.99±0.08Ref |
|
|
Observations
X-Ray |
- |
IR type |
S?Ref |
Radio |
- |
X-Ray type |
- |
J (mag) |
8.19Ref |
Flickering |
- |
GALEX FUV (mag) |
- |
H (mag) |
7.30Ref |
Outbursts |
- |
GALEX NUV (mag) |
- |
K (mag) |
6.81Ref |
Outburst type |
- |
IUE |
NoRef |
WISE W1 (mag) |
6.91Ref |
Jets |
- |
FUSE |
NoRef |
WISE W2 (mag) |
6.48Ref |
Resolved nebula |
- |
U (mag) |
- |
WISE W3 (mag) |
5.73Ref |
IPmax (eV) |
13.6Ref |
B (mag) |
- |
WISE W4 (mag) |
5.08Ref |
[O III] lines |
NoRef |
V (mag) |
13.00Ref |
IRAS 12μm (Jy) |
0.27Ref |
He II lines |
NoRef |
R (mag) |
- |
IRAS 25μm (Jy) |
0.21Ref |
[Fe VII] lines |
NoRef |
I (mag) |
- |
IRAS 60μm (Jy) |
0.34Ref |
O VI lines |
NoRef |
BP (mag) |
17.19Ref |
IRAS 100μm (Jy) |
2.79Ref |
|
|
G (mag) |
13.58Ref |
AKARI S09 (Jy) |
0.26Ref |
|
|
RP (mag) |
11.85Ref |
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 |
M7.5 IIIRef |
Mass (M⊙) |
- |
Pulsation |
YesRef |
Eff. temperature (K) |
- |
Radius (R⊙) |
- |
Type |
MiraRef |
IR type |
S?Ref |
Luminosity (L⊙) |
- |
Pulsation period (days) |
268Ref |
Metallicity [Fe/H] |
- |
|
|
Pulsation ephemeris |
- |
Hot component
Type/Spectral type |
- |
Mass (M⊙) |
- |
Spin period (min) |
- |
Shell-burning/Accreting-only |
accreting-only?Ref |
Radius (R⊙) |
- |
Accretion disk |
- |
Eff. temperature (K) |
- |
Luminosity (L⊙) |
- |
|
|
Lower limit (K) |
- |
|
|
|
|
Upper limit (K) |
- |
|
|
|
|
Notes
Symbiotic candidate selected for AAVSO observing campaing (Waagen, 2020) by Adrian B. Lucy (Columbia University).
Last updated: August 21, 2021