V* BV Cet

All names: G 270-48, PB 8504, WDJ004345.98-100025.02, Gaia DR2 2377863773908424448, FB 8, PHL 814, SDSS J004345.97-100025.1, J0043-1000, NLTT 2388, ATO J010.9409-10.0075, CSI-10-00412, WD 0041-102, Gaia DR3 2377863773908424448, LP 705-94, Gaia EDR3 2377863773908424448, V* BV Cet, EGGR 267, BPM 70331, L 795-7, Feige 7, WD 0041-10, 2MASS J00434599-1000248, uvby98 620001007, TIC 3888273, SDSS J004345.98-100025.1, GSC 05269-01924, BPS CS 22170-0019

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Jewett et al. 2024 O'Brien et al. 2024 Hardy et al. 2023b MWDD HE Gaia DR2 Stilism Ferrario et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 00 43 45.82 (0.03) 00 43 45.83 (0.05) 00 43 45.82 00 43 45.98 (0.03) 00 43 45.83 00 43 46.56
Declination -10 00 27.17 (0.02) -10 00 27.11 (0.04) -10 00 27.17 -10 00 25.02 (0.02) -10 00 27.11 -10 00 22.68
Spectral type DBAH DBAH DBH DBA DBA DB: DBAP3 DXP3
Effective temperature [K] 18381.0 (371) 21334.0 (835) 20847.5 (1077) 22247.0 20000.0 21689.0 (297)
log(g) [cgs] 8.77 8.89 (0.03) 8.86 (0.2) 8.93 8.00 (0) 8.90 (0.009)
Mass [M] 1.077 (0.01) 1.14 (0.02) 1.125139602 (0.2) 1.158 1.146 (0.005)
log(Luminosity) [L]
Cooling age [Gyr] 0.4300 (0.03) 0.3142
log(H/He) -2.0
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 32.12 (0.04) 32.12 (0.04) 32.17 (0.07) 32.12 32.12 (0.04) 32.17 (0.07)
Distance [pc] 31.13 (0.04) 31.13 (0.04) 31.09 (0.07) 31.13 31.13 (0.04) 31.09 (0.07)
Composition He He
Proper motion (right ascension) [mas/yr] -145.6309566 (0.05) -145.4283136 (0.1) -145.631 (0.05) -145.4283136
Proper motion (declination) [mas/yr] -134.8758339 (0.04) -134.6508728 (0.06) -134.876 (0.04) -134.6508728
Variability
Magnetic yes yes yes
Bd [MG] 39.45203169 (0.5) 35
Infrared excess (disk)
Binarity
B magnitude 14.49
V magnitude
R magnitude
I magnitude
J magnitude 15.10 (0.04)
H magnitude 15.07 (0.07)
K magnitude 15.16 (0.1)
u magnitude 14.24 (0.004) 14.26 (0.004) 14.25
g magnitude 14.37 (0.003) 14.39 (0.003) 14.40
r magnitude 14.74 (0.004) 14.75 (0.004) 14.75
i magnitude 15.02 (0.005) 15.04 (0.005) 15.02
z magnitude 15.30 (0.006) 15.31 (0.006) 15.32
G magnitude 14.53 (0.004) 14.54 14.53 14.53 (0.003) 14.54
BP magnitude 14.43 (0.004) 14.39 14.39
RP magnitude 14.70 (0.003) 14.70 14.70
Pan g magnitude 14.39 (0.01)
Pan r magnitude 14.75 (0.005)
Pan i magnitude 15.05 (0.006)
Pan z magnitude 15.30 (0.003)
Pan y magnitude 15.47 (0.004)
E(B-V) 0.000

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.