2MASS J21230949+0409293
All names: 2MASS J21230949+0409293, SDSS J212309.48+040929.1, SDSS J212309.39+040929.52, WD 2120+039, WISE J212309.48+040929.2, Gaia DR2 2693066746543818496, SDSS J212309.49+040929.2, SDSS J212309.39+040929.5
| Parameter | Unit | MWDD H | Gaia DR2 | sdss-wdms.org (29/04/2016) | Kepler et al. 2015 | SDSS DR12 | SDSS DR10 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 23 09.49 (0.6) | 21 23 09.39 | 21 23 09.40 | 21 23 09.40 | 21 23 09.49 (0.6) | 21 23 09.77 | |||
| Declination | 04 09 29.08 (1) | 04 09 29.51 | 04 09 29.56 | 04 09 29.56 | 04 09 29.08 (1) | 04 09 29.16 | |||
| Spectral type | DA3 | DA+M: | M | DA3+dM | |||||
| Effective temperature | [K] | 17904.0 | 11683.0 (71) | ||||||
| log(g) | [cgs] | 8.19 | 8.45 (0.03) | ||||||
| Mass | [M☉] | 0.735 | 0.8759999999999999 (0.02) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.1571 | |||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(C/H) | |||||||||
| log(N/H) | |||||||||
| log(O/H) | |||||||||
| log(Na/H) | |||||||||
| log(Mg/H) | |||||||||
| log(Al/H) | |||||||||
| log(Si/H) | |||||||||
| log(P/H) | |||||||||
| log(S/H) | |||||||||
| log(Sc/H) | |||||||||
| log(Ti/H) | |||||||||
| log(Cr/H) | |||||||||
| log(Mn/H) | |||||||||
| log(Fe/H) | |||||||||
| log(Ni/H) | |||||||||
| Parallax | [mas] | ||||||||
| Distance | [pc] | ||||||||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | ||||||||
| Proper motion (declination) | [mas/yr] | ||||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS? | yes | |||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 13.93 (0.03) | ||||||||
| H magnitude | 13.37 (0.03) | ||||||||
| K magnitude | 13.10 (0.03) | ||||||||
| u magnitude | 16.41 | 16.41 (0.01) | 16.42 (0.006) | 16.42 (0.006) | 19.48 (0.04) | ||||
| g magnitude | 16.13 | 16.13 (0.01) | 16.12 (0.004) | 16.12 (0.004) | 19.05 (0.01) | ||||
| r magnitude | 16.45 | 16.45 (0.01) | 16.45 (0.005) | 16.45 (0.005) | 18.62 (0.01) | ||||
| i magnitude | 16.71 | 16.71 (0.03) | 16.72 (0.005) | 16.72 (0.005) | 16.68 (0.005) | ||||
| z magnitude | 17.31 | 17.31 (0.2) | 17.37 (0.01) | 17.37 (0.01) | 15.67 (0.006) | ||||
| G magnitude | 17.47 | 17.47 (0.005) | |||||||
| BP magnitude | |||||||||
| RP magnitude | |||||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
* Constant surface field
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