USNO-B1.0 1120-00619684

All names: PM J22230+2201N, 2MASS J22230160+2201318, HS 2220+2146A, 22230+2201N, ** SLN 44A, Gaia EDR3 1874954641491354624, SDSS J222301.62+220131.3, Gaia DR3 1874954641491354624, WDS J22230+2202A, WD 2220+217.1, J2223+2201, Gaia DR2 1874954641491354624, UCAC4 561-138949, SDSS J222301.62+220131.4, TIC 385468477, USNO-B1.0 1120-00619684, WDJ222301.60+220131.69

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Limoges et al. 2015 Koester et al. 2009 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 22 23 01.66 (0.05) 22 23 01.66 (0.05) 22 23 01.60 (0.05) 22 23 01.66 22 23 01.61
Declination 22 01 30.70 (0.05) 22 01 30.73 (0.05) 22 01 31.69 (0.05) 22 01 30.73 22 01 29.64
Spectral type DA DA DA DA DA DA2.7
Effective temperature [K] 18758.0 (236) 18760.0 (236) 17831.0 19440.0 (387) 18743.0 (44)
log(g) [cgs] 8.39 (0.01) 8.38 (0.01) 8.35 8.46 (0.06) 8.24 (0.008)
Mass [M] 0.858 (0.008) 0.855 (0.008) 0.834 0.91 (0.04)
log(Luminosity) [L] -1.96
Cooling age [Gyr] 0.2104
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 14.12 (0.06) 14.06 (0.06) 14.12 (0.06) 14.06 (0.06)
Distance [pc] 70.81 (0.3) 71.10 (0.3) 67.30 (2) 70.81 (0.3) 71.10 (0.3)
Composition H H H
Proper motion (right ascension) [mas/yr] 51.90321877 (0.05) 51.98472024 (0.1) 54.0 51.903 (0.06) 51.98472024
Proper motion (declination) [mas/yr] -61.69580474 (0.06) -61.55774032 (0.1) -62.0 -61.696 (0.06) -61.55774032
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.00 14.70
V magnitude
R magnitude 15.95 (0.1)
I magnitude
J magnitude 16.05 16.05 (0.1)
H magnitude 16.19
K magnitude 15.66
u magnitude 15.64 15.65 (0.005) 15.65 (0.005)
g magnitude 15.58 15.59 (0.004) 15.59 (0.004)
r magnitude 15.91 15.91 (0.005) 15.91 (0.005)
i magnitude 16.22 16.23 (0.005) 16.23 (0.005)
z magnitude 16.50 16.50 (0.009) 16.50 (0.009)
G magnitude 15.77 (0.004) 15.79 15.77 (0.003) 15.79
BP magnitude 15.70 (0.004) 15.68 15.68
RP magnitude 15.93 (0.003) 15.94 15.94
Pan g magnitude 15.62 (0.004)
Pan r magnitude 15.95 (0.005)
Pan i magnitude 16.24 (0.001)
Pan z magnitude 16.50 (0.003)
Pan y magnitude 16.66 (0.009)
E(B-V) 0.009

* 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.