All names: uvby98 002502534, GSC 01990-01794, GEN# +0.02502534, Feige 66, UBV M 1434, Gaia DR3 3959631234670040704, Cl* Melotte 111 AV 2361, BD+25 2534, FAUST NGP-1, AG+25 1350, TD1 30963, UBV M 43321, PPM 102028, TYC 1990-1794-1, FB 103, PG1234+253, NAME NC 32, ALS 17215, Gaia EDR3 3959631234670040704, [SS59] I 313, FAUST 3294, GCRV 63421, GALEX J123723.5+250400, ROT 12, PG 1234+253, WEB 10958, TIC 376537516, Gaia DR2 3959631234670040704, LAMOST J123723.80+250359.8, 2MASS J12372352+2503598, SBS 34, UBV 11326, UBV 11327, HIC 61602, HIP 61602
| 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.