Column | Description |
pgc | PGC number |
Name/Photom | Name; select for graphic displays |
Tel | Telescope |
Det | CCD Detector |
Field | Field of view |
Resol | pixel scale |
Date | Observation date: year.month.day.UThour.minute |
File | File number in observing log |
AM | Air mass of observation |
Filt | Filter |
Exp | Total exposure time in seconds in Nx exposures |
Nx | Number of separate exposures |
a27 | Radius at 27 mag/sq. arcsec isophote |
m_27 | Magnitude at 27 mag/sq. arcsec isophote |
m_tot | Total asymptotic magnitude |
e_m | Uncertainty in total magnitude |
SB0 | Extrapolated exponential disk central surface brightness |
alpha | Exponential disk scale length |
b/a | Ratio of minor to major axis dimensions |
e_b/a | Error in ratio of minor to major axis dimensions |
PA | Position angle, East of North |
a80 | Radius on major axis containing 80% of light |
SB80 | Surface brightness at radius a80 |
ae | Radius on major axis containing 50% of light: effective radius |
SBe | Surface brightness at effective radius ae |
avSBe | Average surface brightness within effective radius ae |
a20 | Radius on major axis containing 20% of light |
SB20 | Surface brightness at radius a20 |
avSB20 | Average surface brightness within radius a20 |
C82 | Concentration index a80/a20: ratio of radius containing 80% of light to radius containing 20% of light |