Related systems

New Ongoing Finished Rejected

GAIA catalog

SPEC catalog

Summary

Basic Data

Name: PG2255+266
Coordinates: 22:57:46.07 (h:m:s) +26:57:00.39 (°:':'')
344.4419 (°) +26.9501 (°)
Classification: sdO
Class. type: Photometric
Observing Status: New

Parameters

visibility
Parameter Value.
M_G (mag) 5.4 ± 0.37
parallax () 0.515 ± 0.059

Notes

Aliases

Tags

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visibility

Observations

Photometric observations: 21, Reduced spectroscopic observations: 1, Spectroscopic raw files: 0, Light curves: 0

Photometric observations

Stilism Reddening Map (Lallement+2018)

Photometry content_copy

Band Value Error Unit
GAIA3.BP 16.358 0.005 mag
GAIA3.G 16.478 0.003 mag
GAIA3.RP 16.719 0.007 mag
GALEX.FUV 15.332 0.013 mag
GALEX.NUV 15.703 0.011 mag
SDSS.U 16.068 0.005 mag
APASS.B 16.318 0.053 mag
APASS.G 16.289 0.019 mag
SDSS.G 16.248 0.004 mag
GAIA2.BP 16.302 0.004 mag
APASS.V 16.485 0.158 mag
APASS.R 16.695 0.122 mag
SDSS.R 16.682 0.004 mag
GAIA2.G 16.502 0.001 mag
SDSS.I 17.025 0.006 mag
GAIA2.RP 16.718 0.004 mag
SDSS.Z 17.320 0.013 mag
WISE.W1 17.708 0.182 mag
WISE.W2 < 16.839 / mag
WISE.W3 < 12.326 / mag
WISE.W4 < 9.177 / mag

Spectroscopic observations

Reduced spectra

HJD Date Instrument Resolution Exp time (s) SNR Range (Å)
2456274.500 2012-12-13 BOSS @ SDSS 2.5-M 1900 3603.0 NA 3607 - 10359
Parameter AVG Gaia DR2 Gaia DR3
System
absolute_g_mag (mag) 4.81 ± 0.13 / 4.81 ± 0.13
M_G (mag) 5.4 ± 0.37 5.4 ± 0.37 /
parallax (mas) 0.515 ± 0.059 0.6 ± 0.1 0.464 ± 0.06
pmdec (mas) -2.78 ± 0.071 -2.84 ± 0.13 -2.754 ± 0.057
pmra (mas) -5.739 ± 0.09 -6.05 ± 0.17 -5.631 ± 0.059
Primary
Secondary
content_copy