CONFIRMED
MILKY WAY
|
| V615 Sgr | IRAS - | GSC2.4.2 S9PR021193 | AAVSO 000-BCX-013 |
| SIMBAD SV* HV 7199 | Pan-STARRS - | SAO - | VSX 28315 |
| GAIA DR3 4038763219667644288 | SkyMapper - | WRAY 15-1840 | GCVS V0615 Sgr |
| 2MASS J18074001-3606211 | HIP - | Hen 2-349 | BD - |
| WISE J180739.99-360621.3 | TYC - | ESO 394-29 | HD - |
| Bidelman (1954) | - | Allen (1984) | V615 Sgr (Conf.) | Belzcyński et al. (2001) | V615 Sgr (Conf.) |
| Gaposchkin (1957) | - | Kenyon (1986) | V615 Sgr (Conf.) | Akras et al. (2019) | V615 Sgr (Conf.) |
| Boyarchuk (1969) | - | Vaidis (1988, 1991) | V615 Sgr (Conf.) |
| Right ascension (°) | 271.9166Ref | Parallax (mas) | 0.156±0.028Ref | Reddening E(B-V) (mag) | 0.15±0.0Ref, Note |
| Declination (°) | -36.1059Ref | Distance (kpc) | 3.6Ref 6.50Ref, Note, 5.47Ref, Note |
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| Galactic longitude (°) | 356.0871Ref | Proper motion in α (mas/yr) | -4.61±0.03Ref | ||
| Galactic latitude (°) | -7.5971Ref | Proper motion in δ (mas/yr) | -7.54±0.02Ref |
| X-Ray | NoRef | IR type | SRef | Radio | NoRef |
| X-Ray type | - | J (mag) | 8.79Ref | Flickering | - |
| GALEX FUV (mag) | - | H (mag) | 7.84Ref | Outbursts | - |
| GALEX NUV (mag) | - | K (mag) | 7.51Ref | Outburst type | - |
| IUE | NoRef | WISE W1 (mag) | 7.37Ref | Jets | - |
| FUSE | NoRef | WISE W2 (mag) | 7.44Ref | Resolved nebula | - |
| U (mag) | - | WISE W3 (mag) | 6.96Ref | IPmax (eV) | 54.4Ref |
| B (mag) | - | WISE W4 (mag) | 6.27Ref | [O III] lines | YesRef |
| V (mag) | 12.80Ref | IRAS 12μm (Jy) | - | He II lines | YesRef |
| R (mag) | - | IRAS 25μm (Jy) | - | [Fe VII] lines | NoRef |
| I (mag) | - | IRAS 60μm (Jy) | - | O VI lines | NoRef |
| BP (mag) | 13.45Ref | IRAS 100μm (Jy) | - | ||
| G (mag) | 12.04Ref | AKARI S09 (Jy) | 0.04Ref | ||
| RP (mag) | 10.81Ref | AKARI S18 (Jy) | - |
| Orbital period (days) | 657±39Ref | γ velocity (km/h) | -42.65±10.94Ref | 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) = 2452168 + 657±39 x ERef |
| Spectral type | M5 IIIRef, M2 IIIRef, M5.5 IIIRef |
Mass (M⊙) | - | Pulsation | YesRef |
| Eff. temperature (K) | 3430Ref, 3300Ref | Radius (R⊙) | - | Type | SRRef |
| IR type | SRef | Luminosity (L⊙) | - | Pulsation period (days) | 70±1Ref |
| Metallicity [Fe/H] | -0.07±0.07Ref | Pulsation ephemeris | - |
| Type/Spectral type | WDRef | Mass (M⊙) | - | Spin period (min) | - |
| Shell-burning/Accreting-only | shell-burningRef | Radius (R⊙) | - | Accretion disk | - |
| Eff. temperature (K) | - | Luminosity (L⊙) | 800Ref | ||
| Lower limit (K) | 54000Ref | ||||
| Upper limit (K) | 65000Ref |
The analysis by Bond (1976) proposed that the star is a symbiotic binary, relying on the infrared excess identified by Allen & Glass (1974) and the Me spectral classification in GCVS. Allen (1978) suggested a G-type continuum with the presence of Balmer, He I, [O III], and [Ne III] emission lines.