All names: LEHPM 6221, USNO-B1.0 0455-00799727, WD 2345-447, 2MASS J23481677-4428118, ESO 292-43, Gaia EDR3 6531195177474061824, TIC 144385482, Gaia DR2 6531195177474061824, J2348-4428, LEHPM 6222, WDJ234816.77-442811.76, Ruiz 292-43, Gaia DR3 6531195177474061824
Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | Coutu et al. 2019 | Gaia DR2 | Stilism | Dufour et al. 2007 | Bergeron et al. 2001 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 23 48 17.21 (0.07) | 23 48 16.77 | 23 48 17.20 (0.08) | 23 48 17.21 | 23 48 16.77 (0.07) | 23 48 17.20 | 23 48 15.53 | ||||||
Declination | -44 28 16.18 (0.08) | -44 28 11.76 | -44 28 16.04 (0.08) | -44 28 16.18 | -44 28 11.76 (0.08) | -44 28 16.04 | -44 28 06.96 | ||||||
Spectral type | DZ | DZ | DZ | DC | DZ | DA: | DZ | DZ | |||||
Effective temperature | [K] | 5350.0 (70) | 4886.0 (125) | 4620.0 (110) | 5400.0 (80) | 5490.0 (80) | 5524.0 (45) | ||||||
log(g) | [cgs] | 8.23 (0.04) | 8.11 | 8.35 (0.09) | 8.72 (0.07) | 8.00 (0) | 8.33 (0.02) | ||||||
Mass | [M☉] | 0.715 (0.03) | 0.6358 | 0.8 (0.06) | 1.04 (0.04) | 0.57 | 0.797 (0.02) | ||||||
log(Luminosity) | [L☉] | -4.38 (0.05) | -3.89 | ||||||||||
Cooling age | [Gyr] | 6.5400 | 6.0700 (0.2) | 4.0300 | |||||||||
log(H/He) | <-3.0 | <-5.0 | |||||||||||
log(C/He) | |||||||||||||
log(Ca/He) | -10.942 (0.4) | -11.35 (0.04) | |||||||||||
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] | 27.39 (0.1) | 27.39 (0.1) | 27.54 | 27.54 (0.1) | 38.10 (2) | 27.39 | 27.39 (0.1) | 27.54 (0.1) | 38.10 (2) | |||
Distance | [pc] | 36.50 (0.1) | 36.51 (0.1) | 36.30 (0.2) | 36.30 (0.2) | 26.25 (2) | 36.50 | 36.50 (0.1) | 36.30 (0.2) | 26.25 (1) | |||
Composition | He | He | He | He | |||||||||
Proper motion (right ascension) | [mas/yr] | 296.479 (0.09) | 296.5365342 (0.1) | 296.479 (0.09) | 296.5365342 | ||||||||
Proper motion (declination) | [mas/yr] | -276.403 (0.1) | -276.5413349 (0.2) | -276.403 (0.1) | -276.5413349 | ||||||||
Variability | |||||||||||||
Magnetic | |||||||||||||
Bd | [MG] | ||||||||||||
Infrared excess (disk) | |||||||||||||
Binarity | |||||||||||||
B magnitude | 18.66 | 18.66 | 18.66 | ||||||||||
V magnitude | 17.87 | 17.87 | 17.87 | ||||||||||
R magnitude | 17.45 | 17.45 | 17.50 | ||||||||||
I magnitude | 17.03 | 17.03 | |||||||||||
J magnitude | 16.66 | 16.66 | 16.52 (0.1) | ||||||||||
H magnitude | 16.59 | 16.59 | |||||||||||
K magnitude | 16.33 | 16.33 | |||||||||||
u magnitude | |||||||||||||
g magnitude | |||||||||||||
r magnitude | |||||||||||||
i magnitude | |||||||||||||
z magnitude | |||||||||||||
G magnitude | 17.68 (0.003) | 17.70 | 17.68 | 17.68 (0.003) | 17.70 | ||||||||
BP magnitude | 18.07 (0.01) | 18.08 | 18.08 | ||||||||||
RP magnitude | 17.14 (0.009) | 17.14 | 17.14 | ||||||||||
Pan g magnitude | |||||||||||||
Pan r magnitude | |||||||||||||
Pan i magnitude | |||||||||||||
Pan z magnitude | |||||||||||||
Pan y magnitude | |||||||||||||
E(B-V) | 0.001 |
* Constant surface field
Spectra without link are available upon request
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.