All names: 2MASS J07375624+3116468, ZTF J073756.25+311646.5, CRTS J073756.1+311647, LAMOST J073756.25+311646.7, UCAC4 607-040017, TIC 4161582, LAMOST J073756.25+311646.5, LAMOSTJ073756.25+311646.5, ATO J114.4844+31.2797, Gaia DR3 880252005422941440, Gaia DR2 880252005422941440, WISEA J073756.25+311646.3, SDSS J073756.25+311646.7, WISE J073756.25+311646.5
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 37 56.25 | 07 37 56.26 (0.03) | ||
| Declination | 31 16 46.55 | 31 16 46.74 (0.03) | ||
| Spectral type | sdB | sdBHe5 | ||
| Effective temperature | [K] | 30457.0 (176) | ||
| log(g) | [cgs] | 5.37 (0.04) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.21 (0.07) | 1.29 (0.03) | |
| Distance | [pc] | 825.08 (46) | 775.86 (20) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.452 (0.1) | -1.323 (0.03) | |
| Proper motion (declination) | [mas/yr] | -21.28 (0.09) | -21.322 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.46 (0.09) | |||
| V magnitude | 13.59 (0.1) | |||
| R magnitude | 13.80 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.68 (0.03) | 13.68 (0.03) | ||
| H magnitude | 13.72 (0.03) | 13.72 (0.03) | ||
| K magnitude | 13.80 (0.05) | 13.80 (0.05) | ||
| u magnitude | 13.30 (0.003) | |||
| g magnitude | 12.72 (0.002) | 13.42 (0.08) | ||
| r magnitude | 13.80 (0.003) | 13.77 (0.1) | ||
| i magnitude | 14.09 (0.003) | 14.02 (0.1) | ||
| z magnitude | 14.36 (0.004) | |||
| G magnitude | 13.58 (0.007) | 13.55 (0.007) | ||
| BP magnitude | 13.41 (0.02) | |||
| RP magnitude | 13.74 (0.03) | |||
| Pan g magnitude | 13.50 | |||
| Pan r magnitude | 13.86 (0.01) | |||
| Pan i magnitude | 14.08 (0.03) | |||
| Pan z magnitude | 14.19 (0.04) | |||
| Pan y magnitude | 14.47 (0.02) | |||
| E(B-V) | 0.038 | |||
* 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.