CONFIRMED
MILKY WAY
|
| ZZ CMi | IRAS 07214+0859 | GSC2.4.2 N8M2000007 | AAVSO 000-BCV-062 |
| SIMBAD V* ZZ CMi | Pan-STARRS 118671110584757631 | SAO - | VSX 5568 |
| GAIA DR3 3155368612444708096 | SkyMapper - | WRAY - | GCVS ZZ CMi |
| 2MASS J07241400+0853518 | HIP 35915 | Hen - | BD +09 1633 |
| WISE J072414.00+085351.5 | TYC 763-273-1 | ESO - | HD - |
| Bidelman (1954) | - | Allen (1984) | - | Belzcyński et al. (2001) | ZZ CMi (Susp.) |
| Gaposchkin (1957) | - | Kenyon (1986) | - | Akras et al. (2019) | ZZ CMi (Conf.) |
| Boyarchuk (1969) | - | Vaidis (1988, 1991) | - |
| Right ascension (°) | 111.0583Ref | Parallax (mas) | 0.764±0.052Ref | Reddening E(B-V) (mag) | 0.04±0.0Ref, Note |
| Declination (°) | 8.8977Ref | Distance (kpc) | 1.25Ref, Note, 1.24Ref, Note | ||
| Galactic longitude (°) | 208.6387Ref | Proper motion in α (mas/yr) | -0.20±0.05Ref | ||
| Galactic latitude (°) | 11.2985Ref | Proper motion in δ (mas/yr) | -4.22±0.04Ref |
| X-Ray | YesRef | IR type | SRef | Radio | YesRef |
| X-Ray type | β/δRef | J (mag) | 4.41Ref | Flickering | YesRef |
| GALEX FUV (mag) | - | H (mag) | 3.39Ref | Outbursts | - |
| GALEX NUV (mag) | - | K (mag) | 3.05Ref | Outburst type | - |
| IUE | NoRef | WISE W1 (mag) | 1.93Ref | Jets | - |
| FUSE | NoRef | WISE W2 (mag) | 1.43Ref | Resolved nebula | - |
| U (mag) | - | WISE W3 (mag) | 2.49Ref | IPmax (eV) | 40.1Ref, 35.1Ref |
| B (mag) | 11.63Ref | WISE W4 (mag) | 2.03Ref | [O III] lines | YesRef |
| V (mag) | 10.28Ref | IRAS 12μm (Jy) | 6.60Ref | He II lines | NoRef |
| R (mag) | - | IRAS 25μm (Jy) | 2.65Ref | [Fe VII] lines | NoRef |
| I (mag) | - | IRAS 60μm (Jy) | 0.44Ref | O VI lines | NoRef |
| BP (mag) | 10.10Ref | IRAS 100μm (Jy) | 1.00Ref | ||
| G (mag) | 7.80Ref | AKARI S09 (Jy) | 5.40Ref | ||
| RP (mag) | 6.40Ref | AKARI S18 (Jy) | 1.67Ref |
| Orbital period (days) | 437.18Ref | γ velocity (km/h) | -4.89±0.55Ref | 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 (BVRI) = 2450326.24 + 437.18 x ERef |
| Spectral type | M4-6 IIIRef | Mass (M⊙) | - | Pulsation | YesRef |
| Eff. temperature (K) | - | Radius (R⊙) | - | Type | SRRef |
| IR type | SRef | Luminosity (L⊙) | - | Pulsation period (days) | 106±1Ref |
| Metallicity [Fe/H] | - | Pulsation ephemeris | - |
| Type/Spectral type | WDRef | Mass (M⊙) | - | Spin period (min) | - |
| Shell-burning/Accreting-only | accreting-onlyRef | Radius (R⊙) | - | Accretion disk | - |
| Eff. temperature (K) | - | Luminosity (L⊙) | - | ||
| Lower limit (K) | - | ||||
| Upper limit (K) | - |
The object was initially classified as a semiregular variable with spectral type M6e and a photometric period of about 500 days. The object was previously classified as a semiregular variable with spectral type M6e and a photometric period of about 500 days. Classified as a symbiotic variable by Bopp (1984), based on the similarity with EG And. Also classified as a symbiotic variable by Iijima (1984), considering the detection of [O III] and [Ne III] lines. The symbiotic classification received further support from Zamanov & Tomov (1992), which observed U-B bluer than in a normal M6 giant. In Belczyński et al. (2000), the object was considered only as a suspected symbiotic star. Luna et al. (2013) detected X-ray emission and suggested, based on their observations and UV data, that the object is a WD symbiotic. Zamanov et al. (2021) reported the detection of photometric and spectroscopic variability (flickering) and suggested that the object is an accreting-only symbiotic star similar to T CrB.