* alf CMi B

All names: WD 0736+053, IDS 07341+0529 B, ** SHB 1B, Zkh 107, WD 0736+05, EGGR 53, UBV 7350, Procyon B, ADS 6251 B, 2RXP J073918.2+051334, 8pc 285.93B, J0739+0513, 2XMMi J073917.7+051324, NAME Procyon B, CCDM J07393+0514B, CSI+05 1739 2, WD 0736+052, WDS J07393+0514B, GJ 280 B, * alf CMi B, BD+05 1739B

Parameter Unit Coutu et al. 2019 Tremblay et al. 2017 Stilism Holberg et al. 2016 Limoges et al. 2015 Sion et al. 2014 Giammichele et al. 2012 Holberg et al. 2008 Provencal et al. 2002 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 07 39 17.88 07 39 18.48 07 39 17.88 07 39 21.36
Declination 05 13 26.76 05 13 37.20 05 13 26.80 05 14 04.20
Spectral type DQZ DQZ DQZ DQZ DQZ6.5 DQZ DQZ DQZ DA
Effective temperature [K] 7585.0 (33) 7870.0 (430) 7876.0 (433) 7870.0 (433) 7871.0 7871.0 (433) 7740.0 (50)
log(g) [cgs] 7.96 7.92 (0) 8.08 (0) 8.09 (0)
Mass [M] 0.5541 0.63 (0) 0.63 (0) 0.63 (0)
log(Luminosity) [L] -3.31 -3.31
Cooling age [Gyr] 1.2200 1.3700 1.3700
log(H/He)
log(C/He) -5.8551 (0.03) -5.25 -5.5
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] 284.56 284.56 (1) 285.10 (1) 285.00 (0.8) 285.93 (0.9) 285.93 (0.8) 285.80 (5)
Distance [pc] 3.51 (0.02) 3.51 (0.02) 3.51 (0.01) 3.50 (0) 3.50 3.50 (0.01) 3.50 3.50 (0.06)
Composition He He He He He
Proper motion (right ascension) [mas/yr] -709.0 (25)
Proper motion (declination) [mas/yr] -1024.0 (25)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS yes
B magnitude 11.19 10.70
V magnitude 10.94 (0.05) 10.92 10.94 10.92
R magnitude 10.79
I magnitude 10.67
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude
BP magnitude
RP magnitude
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.000

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.