V455 Sco
CONFIRMED
MILKY WAY
Constellation
Scorpius |
Equatorial coordinates
α = 17 07 21.733
δ = -34 05 14.508 |
Galactic coordinates
l = 351.1737°
b = 3.8860° |
| Suspected |
1950Ref |
| Confirmed |
1978Ref |
| Symbiotic IR type |
SRef |
| Hot component type |
shell-burningRef |
| Outbursts |
- |
|
|
Symbiotic Catalogs
| Bidelman (1954) |
V455 Sco (Conf.) |
Allen (1984) |
V455 Sco (Conf.) |
Belzcyński et al. (2001) |
V455 Sco (Conf.) |
| Gaposchkin (1957) |
V455 Sco (Conf.) |
Kenyon (1986) |
V455 Sco (Conf.) |
Akras et al. (2019) |
V455 Sco (Conf.) |
| Boyarchuk (1969) |
V 455 Sco (Susp.) |
Vaidis (1988, 1991) |
V455 Sco (Conf.) |
Position
| Right ascension (°) |
256.8406Ref |
Parallax (mas) |
0.378±0.040Ref |
Reddening E(B-V) (mag) |
0.67±0.02Ref, Note |
| Declination (°) |
-34.0874Ref |
Distance (kpc) |
5Ref, 2.8Ref,
4.3Ref
2.72Ref, Note, 2.47Ref, Note |
|
|
| Galactic longitude (°) |
351.1737Ref |
Proper motion in α (mas/yr) |
-0.91±0.04Ref |
|
|
| Galactic latitude (°) |
3.8860Ref |
Proper motion in δ (mas/yr) |
-4.43±0.03Ref |
|
|
Observations
| X-Ray |
NoRef |
IR type |
SRef |
Radio |
YesRef |
| X-Ray type |
- |
J (mag) |
7.54Ref |
Flickering |
NoRef |
| GALEX FUV (mag) |
- |
H (mag) |
6.47Ref |
Outbursts |
- |
| GALEX NUV (mag) |
- |
K (mag) |
5.96Ref |
Outburst type |
- |
| IUE |
NoRef |
WISE W1 (mag) |
5.76Ref |
Jets |
- |
| FUSE |
NoRef |
WISE W2 (mag) |
5.73Ref |
Resolved nebula |
Yes?Ref |
| U (mag) |
- |
WISE W3 (mag) |
5.21Ref |
IPmax (eV) |
114Ref |
| B (mag) |
- |
WISE W4 (mag) |
3.27Ref |
[O III] lines |
YesRef |
| V (mag) |
14.00Ref |
IRAS 12μm (Jy) |
1.23Ref |
He II lines |
YesRef |
| R (mag) |
- |
IRAS 25μm (Jy) |
1.54Ref |
[Fe VII] lines |
YesRef |
| I (mag) |
- |
IRAS 60μm (Jy) |
0.70Ref |
O VI lines |
YesRef |
| BP (mag) |
13.51Ref |
IRAS 100μm (Jy) |
7.56Ref |
|
|
| G (mag) |
12.03Ref |
AKARI S09 (Jy) |
0.38Ref |
|
|
| RP (mag) |
10.70Ref |
AKARI S18 (Jy) |
0.36Ref |
|
|
Orbit
| Orbital period (days) |
1419±32Ref, 1397.8±5.9Ref |
γ velocity (km/h) |
-77.90±0.23Ref |
Size of giant’s orbit (AU) |
1.02Ref |
| Eccentricity |
0Ref, 0Ref |
RV of giant (km/h) |
7.93±0.32Ref |
Separation (AU) |
- |
| Inclination (°) |
93.6±2.3Ref, 94.3±1.4Ref |
Inferior conj. of giant (JD) |
2452991 |
Mass function |
0.0724Ref |
| Eclipses |
- |
|
|
Mass ratio |
2.8Ref |
| Orbital ephemeris |
- |
|
|
|
|
Cool component
| Spectral type |
M6 IIIRef, M6 IIIRef,
M1 IIIRef, M6.5 IIIRef |
Mass (M⊙) |
1.1Ref, 1.12Ref |
Pulsation |
- |
| Eff. temperature (K) |
3235Ref, 3200Ref |
Radius (R⊙) |
207±28Ref |
Type |
- |
| IR type |
SRef |
Luminosity (L⊙) |
4550Ref |
Pulsation period (days) |
- |
| Metallicity [Fe/H] |
0.36±0.09Ref |
|
|
Pulsation ephemeris |
- |
Hot component
| Type/Spectral type |
WDRef |
Mass (M⊙) |
0.6Ref |
Spin period (min) |
- |
| Shell-burning/Accreting-only |
shell-burningRef |
Radius (R⊙) |
- |
Accretion disk |
- |
| Eff. temperature (K) |
160000Ref |
Luminosity (L⊙) |
930Ref, 2000Ref |
|
|
| Lower limit (K) |
114000Ref |
|
|
|
|
| Upper limit (K) |
- |
|
|
|
|
References
- Allen, D. A., 1978, MNRAS, 184, 601, 1978MNRAS.184..601A
- Allen, D. A., 1980, MNRAS, 192, 521, 1980MNRAS.192..521A
- Bond, H. E., 1976, PASP, 88, 192, 1976PASP...88..192B
- Fekel, F. C., Hinkle, K. H., Joyce, R. R. et al., 2008, AJ, 136, 1, 146, 2008AJ....136..146F
- Gałan, C., Mikołajewska, J., Hinkle, K. H. et al., 2016, MNRAS, 455, 2, 1282, 2016MNRAS.455.1282G
- Harries, T. J., Howarth, I. D., 2000, A&A, 361, 139, 2000A&A...361..139H
- Henize, K. G., 1967, ApJS, 14, 125, 1967ApJS...14..125H
- Heo, J., Angeloni, R., Di Mille, F. et al., 2016, JPhCS, 728, 7, 072014, 2016JPhCS.728g2014H
- Medina Tanco, G. A., Steiner, J. E., 1995, AJ, 109, 1770, 1995AJ....109.1770M
- Merc, J., Beck, P. G., Mathur, S. et al., 2023, arXiv, arXiv:2312.16126, 2023arXiv231216126M
- Merrill, P. W., Burwell, C. G., 1950, ApJ, 112, 72, 1950ApJ...112...72M
- Mikołajewska, J., Acker, A., Stenholm, B., 1997, A&A, 327, 191, 1997A&A...327..191M
- Mürset, U., Schmid, H. M., 1999, A&AS, 137, 473, 1999A&AS..137..473M
- Stenholm, B., Acker, A., 1987, A&AS, 68, 51, 1987A&AS...68...51S
- Wallerstein, G., 1986, A&A, 163, 337, 1986A&A...163..337W
Last updated: January 13, 2024