TYC 1371-69-1
SUSPECTED
MILKY WAY
Constellation
Gemini |
Equatorial coordinates
α = 07 57 31.122
δ = +20 17 34.666 |
Galactic coordinates
l = 201.1809°
b = 23.2977° |
| Suspected |
2012Ref |
| Confirmed |
- |
| Symbiotic IR type |
S?Ref |
| Hot component type |
accreting-only?Ref |
| Outbursts |
YesRef - SyN?Ref |
|
|
Symbiotic Catalogs
| Bidelman (1954) |
- |
Allen (1984) |
- |
Belzcyński et al. (2001) |
- |
| Gaposchkin (1957) |
- |
Kenyon (1986) |
- |
Akras et al. (2019) |
DASCH J075731.1+201735 (Susp.) |
| Boyarchuk (1969) |
- |
Vaidis (1988, 1991) |
- |
Position
| Right ascension (°) |
119.3797Ref |
Parallax (mas) |
0.675±0.023Ref |
Reddening E(B-V) (mag) |
0.05±0.01Ref, Note |
| Declination (°) |
20.2930Ref |
Distance (kpc) |
1Ref 1.40Ref, Note, 1.39Ref, Note |
|
|
| Galactic longitude (°) |
201.1809Ref |
Proper motion in α (mas/yr) |
-0.77±0.03Ref |
|
|
| Galactic latitude (°) |
23.2977Ref |
Proper motion in δ (mas/yr) |
-6.99±0.02Ref |
|
|
Observations
| X-Ray |
NoRef |
IR type |
S?Ref |
Radio |
- |
| X-Ray type |
- |
J (mag) |
7.28Ref |
Flickering |
- |
| GALEX FUV (mag) |
- |
H (mag) |
6.45Ref |
Outbursts |
YesRef |
| GALEX NUV (mag) |
- |
K (mag) |
6.17Ref |
Outburst type |
SyN?Ref |
| IUE |
NoRef |
WISE W1 (mag) |
6.07Ref |
Jets |
- |
| FUSE |
NoRef |
WISE W2 (mag) |
6.09Ref |
Resolved nebula |
- |
| U (mag) |
- |
WISE W3 (mag) |
6.00Ref |
IPmax (eV) |
- |
| B (mag) |
12.38Ref |
WISE W4 (mag) |
5.75Ref |
[O III] lines |
- |
| V (mag) |
10.71Ref |
IRAS 12μm (Jy) |
0.19Ref |
He II lines |
- |
| R (mag) |
- |
IRAS 25μm (Jy) |
0.25Ref |
[Fe VII] lines |
- |
| I (mag) |
- |
IRAS 60μm (Jy) |
0.18Ref |
O VI lines |
NoRef |
| BP (mag) |
11.01Ref |
IRAS 100μm (Jy) |
1.43Ref |
|
|
| G (mag) |
9.86Ref |
AKARI S09 (Jy) |
0.22Ref |
|
|
| RP (mag) |
8.80Ref |
AKARI S18 (Jy) |
- |
|
|
Orbit
| Orbital period (days) |
119.18±0.07Ref, 119.13±0.06Ref |
γ velocity (km/h) |
-33.57Ref, -30.48±3.28Ref |
Size of giant’s orbit (AU) |
- |
| Eccentricity |
0.024±0.015Ref, 0.01±0.01Ref |
RV of giant (km/h) |
13.906±0.025Ref |
Separation (AU) |
0.558Ref |
| Inclination (°) |
60±5Ref |
Inferior conj. of giant (JD) |
2455597.969 |
Mass function |
0.0331Ref |
| Eclipses |
- |
|
|
Mass ratio |
2Ref |
| Orbital ephemeris |
- |
|
|
|
|
Cool component
| Spectral type |
M0Ref |
Mass (M⊙) |
1Ref |
Pulsation |
- |
| Eff. temperature (K) |
3850Ref |
Radius (R⊙) |
35Ref |
Type |
- |
| IR type |
S?Ref |
Luminosity (L⊙) |
250Ref |
Pulsation period (days) |
- |
| Metallicity [Fe/H] |
-0.6Ref |
|
|
Pulsation ephemeris |
- |
Hot component
| Type/Spectral type |
WD?Ref |
Mass (M⊙) |
0.5Ref |
Spin period (min) |
- |
| Shell-burning/Accreting-only |
accreting-only?Ref |
Radius (R⊙) |
0.01Ref |
Accretion disk |
- |
| Eff. temperature (K) |
6900Ref |
Luminosity (L⊙) |
5Ref |
|
|
| Lower limit (K) |
- |
|
|
|
|
| Upper limit (K) |
- |
|
|
|
|
Notes
Reported by Tang et al. (2012) to be a possible symbiotic binary which showed a nova-like outburst in 1943-1950. The symbiotic nature is also supported by the analysis of IR data by Akras et al. (2019).
References
- Akras, S., Leal-Ferreira, M. L., Guzman-Ramirez, L. et al., 2019, MNRAS, 483, 4, 5077, 2019MNRAS.483.5077A
- Beck, P. G., Grossmann, D. H., Steinwender, L. et al., 2023, arXiv, arXiv:2307.10812, 2023arXiv230710812B
- Tang, S., Grindlay, J. E., Moe, M. et al., 2012, ApJ, 751, 2, 99, 2012ApJ...751...99T
Last updated: January 13, 2024