All names: Gaia DR3 2607080474778620544, 2MASS J23040753-0856274, ATO J346.0313-08.9408, SDSS J230407.53-085627.24, BPSCS22893-38, TIC 404225316, Gaia DR2 2607080474778620544, SDSS J230407.52-085627.2, GALEX J230407.5-085626, BPS CS 22893-0038, USNO-A2.0 0750-21375394, [BGK2006] J230407.53-085627.3, CRTS J230407.6-085628, PB 7507, ZTF J230407.52-085627.0, SDSS J230407.53-085627.2, Gaia EDR3 2607080474778620544
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 04 07.53 (0.04) | 23 04 07.53 | 23 04 07.53 | 23 04 07.53 (0.07) | 23 04 07.53 (0.04) | ||||
| Declination | -08 56 27.22 (0.04) | -08 56 27.25 | -08 56 26.81 | -08 56 27.22 (0.05) | -08 56 27.20 (0.04) | ||||
| Spectral type | sdB | sdB | sdB | ||||||
| Effective temperature | [K] | 22480.0 (271) | |||||||
| log(g) | [cgs] | 5.00 (0.05) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.10 (0.05) | 0.08 (0.07) | 0.08 (0.07) | 0.10 (0.05) | ||||
| Distance | [pc] | 10066.60 (5055) | 11947.43 (10563) | 11950.77 (10569) | 10070.49 (5061) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.54330463 (0.05) | 0.532 (0.1) | 0.53206274 (0.1) | 0.543 (0.05) | ||||
| Proper motion (declination) | [mas/yr] | -1.803653568 (0.04) | -1.578 (0.1) | -1.577627289 (0.1) | -1.804 (0.04) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.08 | ||||||||
| V magnitude | 16.19 | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.37 (0.1) | 16.37 (0.1) | |||||||
| H magnitude | 17.37 | ||||||||
| K magnitude | 16.57 | ||||||||
| u magnitude | 16.68 (0.007) | 16.68 (0.007) | 16.68 (0.02) | 16.68 (0.007) | |||||
| g magnitude | 16.11 (0.004) | 16.11 (0.004) | 16.14 (0.02) | 16.11 (0.004) | |||||
| r magnitude | 16.40 (0.004) | 16.40 (0.004) | 16.41 (0.01) | 16.40 (0.004) | |||||
| i magnitude | 16.63 (0.005) | 16.64 (0.005) | 16.64 (0.01) | 16.64 (0.005) | |||||
| z magnitude | 16.75 (0.01) | 16.75 (0.01) | 16.77 (0.03) | 16.75 (0.01) | |||||
| G magnitude | 16.18 (0.02) | 16.20 (0.006) | 16.20 | 16.18 (0.006) | |||||
| BP magnitude | 16.14 (0.02) | 16.12 (0.02) | 16.12 | ||||||
| RP magnitude | 16.22 (0.01) | 16.23 (0.02) | 16.23 | ||||||
| Pan g magnitude | 16.12 (0.01) | 16.12 (0.01) | |||||||
| Pan r magnitude | 16.32 (0.01) | 16.32 (0.01) | |||||||
| Pan i magnitude | 16.56 (0.02) | 16.56 (0.02) | |||||||
| Pan z magnitude | 16.76 (0.02) | 16.75 (0.02) | |||||||
| Pan y magnitude | 16.84 (0.01) | 16.84 (0.01) | |||||||
| E(B-V) | 0.033 | ||||||||
* 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.