All names: ALS 17215, BD+25 2534, FAUST NGP-1, GCRV 63421, PG 1234+253, WEB 10958, PG1234+253, 2MASS J12372352+2503598, GALEX J123723.5+250400, Feige 66, Gaia DR3 3959631234670040704, GSC 01990-01794, LAMOST J123723.80+250359.8, Gaia EDR3 3959631234670040704, TD1 30963, UBV 11326, AG+25 1350, uvby98 002502534, HIC 61602, Cl* Melotte 111 AV 2361, GEN# +0.02502534, UBV 11327, UBV M 43321, SBS 34, ROT 12, HIP 61602, NAME NC 32, FB 103, TIC 376537516, PPM 102028, UBV M 1434, TYC 1990-1794-1, Gaia DR2 3959631234670040704, [SS59] I 313, FAUST 3294
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 12 37 23.52 (0.05) | 12 37 23.52 | 12 37 23.52 (0.05) | ||
| Declination | 25 03 59.43 (0.03) | 25 03 59.90 | 25 03 59.87 (0.03) | ||
| Spectral type | sdB | sdB1(k) | |||
| Effective temperature | [K] | 34500.0 (1000) | |||
| log(g) | [cgs] | 5.83 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 7.04 (0.06) | 7.07 (0.08) | 7.04 (0.06) | |
| Distance | [pc] | 142.05 (1) | 141.42 (2) | 142.05 (1) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.504 (0.07) | 1.833 (0.1) | 1.504 (0.07) | |
| Proper motion (declination) | [mas/yr] | -27.222 (0.06) | -27.425 (0.08) | -27.222 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 10.26 (0.03) | ||||
| V magnitude | 10.59 (0.05) | ||||
| R magnitude | 10.64 | ||||
| I magnitude | 10.81 | ||||
| J magnitude | 11.16 (0.02) | 11.16 (0.02) | |||
| H magnitude | 11.27 (0.03) | 11.27 (0.03) | |||
| K magnitude | 11.37 (0.02) | 11.37 (0.02) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | 11.81 (0.003) | ||||
| G magnitude | 10.46 (0.003) | 10.47 (0.0007) | 10.46 (0.003) | ||
| BP magnitude | 10.30 (0.003) | 10.30 (0.002) | |||
| RP magnitude | 10.76 (0.004) | 10.77 (0.0009) | |||
| Pan g magnitude | 10.34 | ||||
| Pan r magnitude | 10.79 | ||||
| Pan i magnitude | 11.14 | ||||
| Pan z magnitude | 11.42 | ||||
| Pan y magnitude | 11.66 | ||||
| E(B-V) | 0.006 | ||||
* 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.