CONFIRMED
MILKY WAY
|
| TX CVn | IRAS 12423+3702 | GSC2.4.2 N566000108 | AAVSO 000-BBT-182 |
| SIMBAD V* TX CVn | Pan-STARRS 152111911752097448 | SAO 63173 | VSX 5048 |
| GAIA DR3 1520090669535373824 | SkyMapper - | WRAY - | GCVS TX CVn |
| 2MASS J12444206+3645506 | HIP - | Hen - | BD +37 2318 |
| WISE J124442.05+364550.5 | TYC 2533-1168-1 | ESO - | HD - |
| Bidelman (1954) | - | Allen (1984) | - | Belzcyński et al. (2001) | TX CVn (Conf.) |
| Gaposchkin (1957) | - | Kenyon (1986) | TX CVn (Conf.) | Akras et al. (2019) | TX CVn (Conf.) |
| Boyarchuk (1969) | - | Vaidis (1988, 1991) | TX CVn (Conf.) |
| Right ascension (°) | 191.1752Ref | Parallax (mas) | 0.384±0.015Ref | Reddening E(B-V) (mag) | 0.01±0.0Ref, Note |
| Declination (°) | 36.7640Ref | Distance (kpc) | 5.355Ref, 1.3Ref, 1.0±0.3Ref 2.41Ref, Note, 2.44Ref, Note |
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| Galactic longitude (°) | 130.9318Ref | Proper motion in α (mas/yr) | -13.75±0.01Ref | ||
| Galactic latitude (°) | 80.2593Ref | Proper motion in δ (mas/yr) | -5.26±0.02Ref |
| X-Ray | NoRef | IR type | SRef | Radio | NoRef |
| X-Ray type | - | J (mag) | 7.47Ref | Flickering | NoRef |
| GALEX FUV (mag) | 14.42Ref | H (mag) | 6.58Ref | Outbursts | YesRef |
| GALEX NUV (mag) | 13.28Ref | K (mag) | 6.25Ref | Outburst type | Z AndRef |
| IUE | YesRef | WISE W1 (mag) | 5.79Ref | Jets | - |
| FUSE | NoRef | WISE W2 (mag) | 5.25Ref | Resolved nebula | NoRef |
| U (mag) | - | WISE W3 (mag) | 3.54Ref | IPmax (eV) | 13.6Ref |
| B (mag) | 10.96Ref | WISE W4 (mag) | 2.78Ref | [O III] lines | NoRef |
| V (mag) | 10.15Ref | IRAS 12μm (Jy) | 1.07Ref | He II lines | NoRef |
| R (mag) | 9.79Ref | IRAS 25μm (Jy) | 0.33Ref | [Fe VII] lines | NoRef |
| I (mag) | - | IRAS 60μm (Jy) | 0.40Ref | O VI lines | NoRef |
| BP (mag) | 10.09Ref | IRAS 100μm (Jy) | 1.00Ref | ||
| G (mag) | 9.50Ref | AKARI S09 (Jy) | 1.40Ref | ||
| RP (mag) | 8.72Ref | AKARI S18 (Jy) | 0.70Ref |
| Orbital period (days) | 70.8Ref, 410Ref, 199.0±3.1Ref |
γ velocity (km/h) | 2.31±0.25Ref, -2.33±1.47Ref | Size of giant’s orbit (AU) | 0.1Ref |
| Eccentricity | 0.56Ref, 0.6Ref, 0.16±0.06Ref |
RV of giant (km/h) | 9.8Ref, 5.68±0.36Ref | Separation (AU) | - |
| Inclination (°) | 10Ref, 20-70Ref | Inferior conj. of giant (JD) | - | Mass function | 0.004Ref, 0.009Ref, 0.0036Ref |
| Eclipses | - | Mass ratio | 1Ref | ||
| Orbital ephemeris | - |
| Spectral type | K0 IIIRef, M0 IIIRef, K5.3 IIIRef |
Mass (M⊙) | 3.5Ref | Pulsation | - |
| Eff. temperature (K) | 4100Ref | Radius (R⊙) | 25Ref, 30±10Ref | Type | - |
| IR type | SRef | Luminosity (L⊙) | 300Ref, 230Ref | Pulsation period (days) | - |
| Metallicity [Fe/H] | - | Pulsation ephemeris | - |
| Type/Spectral type | WDRef | Mass (M⊙) | 0.3-0.55Ref | Spin period (min) | - |
| Shell-burning/Accreting-only | shell-burningRef | Radius (R⊙) | - | Accretion disk | - |
| Eff. temperature (K) | 17000Ref | Luminosity (L⊙) | 50-2000Ref, 37Ref | ||
| Lower limit (K) | - | ||||
| Upper limit (K) | - |
Variable spectrum and brightness of this star were reported by Cowley (1956), exhibiting spectral type K2 at some epochs and B5 at others, along with emission lines of Balmer and possibly Ca II. Subsequent analysis of long-term photometric measurements, as detailed in Mumford (1956), confirmed its outburst activity (see also the light curve in Skopal, 2005). This object has been considered as a CV and a P Cygni star, with Mammano & Taffara (1978) suggesting similarities to SS Lep and AX Mon. Fried (1980) suggested that TX CVn is a spectroscopic binary with an orbital period of 71 d, composed of a B9V star and a K0 III star. However, Kenyon & Webbink (1984), claimed that the hot star cannot be a main sequence dwarf in the light of its photometric and spectroscopic variability. They suggested that the hot component is a shell burning WD. The presence of a WD was also supported by Kenyon & Garcia (1989).