EC 21251-1255a

All names: Gaia DR3 6891104778224376320, 2MASS J21275284-1242367, EC21251-1255a, Gaia DR2 6891104778224376320, UCAC4 387-143291, EC 21251-1255a

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 21 27 52.82 21 27 52.84 (0.04)
Declination -12 42 37.12 -12 42 36.78 (0.04)
Spectral type sdB sdB
Effective temperature [K]
log(g) [cgs]
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.12 (0.08) 0.11 (0.04)
Distance [pc] 8156.61 (5269) 9433.96 (3418)
Composition
Proper motion (right ascension) [mas/yr] -2.115 (0.2) -1.943 (0.05)
Proper motion (declination) [mas/yr] -6.75 (0.3) -6.366 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.54 (0.03)
V magnitude 14.53 (0.01)
R magnitude 14.78 (0.06)
I magnitude
J magnitude 14.92 (0.04) 14.92 (0.04)
H magnitude 14.88 (0.06) 14.88 (0.06)
K magnitude 15.04 (0.1) 15.04 (0.1)
u magnitude
g magnitude 14.47 (0.02)
r magnitude 14.74 (0.02)
i magnitude 15.03 (0.2)
z magnitude
G magnitude 14.59 (0.0006) 14.57 (0.003)
BP magnitude 14.49 (0.005)
RP magnitude 14.70 (0.003)
Pan g magnitude 14.46 (0.001)
Pan r magnitude 14.76 (0.002)
Pan i magnitude 15.03 (0.002)
Pan z magnitude 15.24 (0.002)
Pan y magnitude 15.35 (0.003)
E(B-V) 0.034

* 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.