WD 2305+239
All names: WD 2305+239, LP 401-50, PM J23082+2414, NLTT 55920, TIC 436834270, Gaia DR2 2842462137347560320, 2MASS J23081266+2414255, 23082+2414, J2308+2414, USNO-B1.0 1142-00554204, SDSS J230812.82+241425.0, WDJ230812.71+241425.53, PSO J347.0539+24.2401, Gaia DR3 2842462137347560320, LSPM J2308+2414, Gaia EDR3 2842462137347560320
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 08 12.98 (0.09) | 23 08 12.97 (0.1) | 23 08 12.97 (0.1) | 23 08 12.98 | 23 08 12.71 (0.09) | 23 08 12.97 | 23 08 14.93 | |||||||||
| Declination | 24 14 24.34 (0.08) | 24 14 24.37 (0.09) | 24 14 24.37 (0.09) | 24 14 24.34 | 24 14 25.53 (0.08) | 24 14 24.37 | 24 14 15.36 | |||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC | DA: | DC | DC | ||||||
| Effective temperature | [K] | 4898.0 (84) | 4798.0 (19) | 4786.4 (47) | 4825.0 (25) | 4849.0 | 4528.0 | 4760.0 (105) | 4884.0 (49) | |||||||
| log(g) | [cgs] | 7.88 (0.07) | 7.85 (0.01) | 7.84 (0.04) | 7.86 (0.02) | 7.88 | 7.65 | 8.00 (0) | 7.89 (0.03) | |||||||
| Mass | [M☉] | 0.511 (0.04) | 0.493 (0.01) | 0.498 (0.01) | 0.508 | 0.378 | 0.58 (0.1) | 0.515 (0.02) | ||||||||
| log(Luminosity) | [L☉] | -4.14 | ||||||||||||||
| Cooling age | [Gyr] | 5.2100 | 4.9410 (0.3) | 5.0160 | 3.7230 | |||||||||||
| 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] | 25.00 (0.1) | 25.00 (0.1) | 25.21 (0.1) | 25.21 (0.2) | 25.21 (0.2) | 25.21 (0.2) | 25.00 | 25.00 (0.1) | 25.21 (0.2) | ||||||
| Distance | [pc] | 40.00 (0.2) | 40.00 (0.2) | 39.67 (0.2) | 39.67 (0.2) | 39.67 (0.2) | 39.67 (0.2) | 35.10 (6) | 40.00 | 40.00 (0.2) | 39.67 (0.2) | |||||
| Composition | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 233.2140107 (0.1) | 233.4946186 (0.2) | 233.214 (0.1) | 233.4946186 | |||||||||||
| Proper motion (declination) | [mas/yr] | -74.67599761 (0.1) | -74.89671686 (0.2) | -74.676 (0.1) | -74.89671686 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | yes | |||||||||||||||
| B magnitude | 18.60 | |||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | 17.40 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 16.50 (0.02) | 16.55 (0.1) | 16.55 (0.1) | |||||||||||||
| H magnitude | ||||||||||||||||
| K magnitude | ||||||||||||||||
| u magnitude | 20.46 (0.07) | 20.47 (0.07) | 20.47 (0.07) | |||||||||||||
| g magnitude | 18.49 (0.006) | 18.56 (0.008) | ||||||||||||||
| r magnitude | 17.80 (0.003) | 17.82 (0.006) | ||||||||||||||
| i magnitude | 17.54 (0.006) | 17.52 (0.007) | ||||||||||||||
| z magnitude | 17.44 (0.01) | 17.39 (0.01) | ||||||||||||||
| G magnitude | 17.84 (0.02) | 17.87 | 17.87 | 17.84 | 17.84 (0.003) | 17.87 | ||||||||||
| BP magnitude | 18.36 (0.02) | 18.39 | 18.39 | |||||||||||||
| RP magnitude | 17.19 (0.01) | 17.20 | 17.20 | |||||||||||||
| Pan g magnitude | 18.49 (0.008) | 18.49 (0.006) | 18.49 (0.006) | |||||||||||||
| Pan r magnitude | 17.80 (0.004) | 17.80 (0.003) | 17.80 (0.003) | |||||||||||||
| Pan i magnitude | 17.54 (0.005) | 17.54 (0.006) | 17.54 (0.006) | |||||||||||||
| Pan z magnitude | 17.44 (0.008) | 17.44 (0.01) | 17.44 (0.01) | |||||||||||||
| Pan y magnitude | 17.39 (0.007) | 17.39 (0.007) | 17.39 (0.007) | |||||||||||||
| E(B-V) | 0.002 | |||||||||||||||
* Constant surface field
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