GD 248
All names: 2MASS J23260659+1600195, Gaia DR2 2814629409239942272, Gaia EDR3 2814629409239942272, GD 248, SDSS J232606.56+160018.3, 1SWASP J232606.58+160019.4, WD 2323+157.1, 23261+1600, WD 2323+157, WDJ232606.59+160019.28, PM J23261+1600, SDSS J232606.56+160018.2, GEN# +6.10060248, KUV 23236+1544, J2326+1600, Gaia DR3 2814629409239942272, TIC 435231234, WD 2323+15, EGGR 335
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 26 06.54 (0.02) | 23 26 06.54 (0.03) | 23 26 06.54 (0.03) | 23 26 06.54 | 23 26 06.59 (0.02) | 23 26 06.54 | 23 26 06.86 | ||||||||||
| Declination | 16 00 17.43 (0.02) | 16 00 17.49 (0.03) | 16 00 17.49 (0.03) | 16 00 17.43 | 16 00 19.28 (0.02) | 16 00 17.49 | 16 00 18.36 | ||||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC | DC | DA5 | DC5 | |||||||
| Effective temperature | [K] | 9610.0 (74) | 9915.0 (110) | 9688.0 (39) | 9848.7 (38) | 10057.0 | 10059.0 | 9980.0 (356) | 10170.0 (390) | 9869.0 (60) | |||||||
| log(g) | [cgs] | 7.96 (0.01) | 8.04 (0.03) | 7.96 (0.007) | 8.04 (0.01) | 8.18 | 8.12 | 8.00 (0) | 8.00 (0) | 8.04 (0.009) | |||||||
| Mass | [M☉] | 0.554 (0.009) | 0.606 (0.02) | 0.559 (0.005) | 0.712 | 0.653 | 0.58 (0.1) | 0.58 | 0.603 (0.008) | ||||||||
| log(Luminosity) | [L☉] | -2.85 | -2.82 | ||||||||||||||
| Cooling age | [Gyr] | 0.6800 | 0.7749 | 0.7328 | 0.8100 | ||||||||||||
| log(H/He) | -4.4 | -4.4 | |||||||||||||||
| log(C/He) | |||||||||||||||||
| log(Ca/He) | |||||||||||||||||
| log(Ca/H) | |||||||||||||||||
| log(N/He) | |||||||||||||||||
| log(O/He) | |||||||||||||||||
| log(Na/He) | |||||||||||||||||
| log(Mg/He) | |||||||||||||||||
| log(Al/He) | |||||||||||||||||
| log(Si/He) | |||||||||||||||||
| log(P/He) | |||||||||||||||||
| log(S/He) | |||||||||||||||||
| log(Cl/He) | |||||||||||||||||
| log(Sc/He) | |||||||||||||||||
| log(Ti/He) | |||||||||||||||||
| log(V/He) | |||||||||||||||||
| log(Cr/He) | |||||||||||||||||
| log(Mn/He) | |||||||||||||||||
| log(Fe/He) | |||||||||||||||||
| log(Co/He) | |||||||||||||||||
| log(Ni/He) | |||||||||||||||||
| log(Cu/He) | |||||||||||||||||
| log(Zn/He) | |||||||||||||||||
| log(Ga/He) | |||||||||||||||||
| log(Ge/He) | |||||||||||||||||
| log(Sr/He) | |||||||||||||||||
| Parallax | [mas] | 29.59 (0.03) | 29.59 (0.03) | 29.50 (0.05) | 29.50 (0.05) | 29.50 (0.05) | 29.59 | 29.59 (0.03) | 29.50 (0.05) | ||||||||
| Distance | [pc] | 33.79 (0.04) | 33.80 (0.03) | 33.90 (0.06) | 33.89 (0.06) | 33.89 (0.06) | 35.50 (6) | 33.79 | 33.79 (0.04) | 33.89 (0.06) | |||||||
| Composition | He | He | He | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -41.52775362 (0.03) | -41.51557919 (0.1) | -41.528 (0.03) | -41.51557919 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -115.4850662 (0.03) | -115.5705845 (0.05) | -115.485 (0.03) | -115.5705845 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 15.23 | 15.21 | |||||||||||||||
| V magnitude | 15.13 | 15.11 | |||||||||||||||
| R magnitude | 15.04 | 15.03 | |||||||||||||||
| I magnitude | 14.97 | 14.98 | |||||||||||||||
| J magnitude | 15.05 (0.04) | 15.06 | 15.05 (0.04) | ||||||||||||||
| H magnitude | 14.94 (0.07) | 15.08 | 14.94 (0.07) | ||||||||||||||
| K magnitude | 14.88 (0.1) | 15.06 | 14.88 (0.1) | ||||||||||||||
| u magnitude | 15.17 (0.004) | 15.20 (0.004) | 15.17 (0.004) | ||||||||||||||
| g magnitude | 15.04 (0.003) | 15.03 (0.003) | |||||||||||||||
| r magnitude | 15.14 (0.004) | 15.14 (0.003) | |||||||||||||||
| i magnitude | 15.28 (0.004) | 15.28 (0.004) | |||||||||||||||
| z magnitude | 15.44 (0.006) | 15.45 (0.005) | |||||||||||||||
| G magnitude | 15.05 (0.001) | 15.08 | 15.08 | 15.05 | 15.05 (0.003) | 15.08 | |||||||||||
| BP magnitude | 15.09 (0.001) | 15.07 | 15.07 | ||||||||||||||
| RP magnitude | 14.98 (0.001) | 14.98 | 14.98 | ||||||||||||||
| Pan g magnitude | 15.07 (0.006) | 15.07 (0.006) | |||||||||||||||
| Pan r magnitude | 15.17 (0.004) | 15.17 (0.004) | |||||||||||||||
| Pan i magnitude | 15.32 (0.004) | 15.32 (0.004) | |||||||||||||||
| Pan z magnitude | 15.46 (0.003) | 15.46 (0.002) | |||||||||||||||
| Pan y magnitude | 15.58 (0.008) | 15.58 (0.007) | |||||||||||||||
| E(B-V) | 0.001 | ||||||||||||||||
* Constant surface field
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