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Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.sao.ru/fetch/HL/leda/table.html
Дата изменения: Mon Dec 23 18:23:59 2013 Дата индексирования: Fri Feb 28 08:27:27 2014 Кодировка: Поисковые слова: asteroid |
| parameter name | type | Description |
|---|---|---|
| pgc | int | pgc number |
| objname | varchar | principal designation |
| objtype | character*1 | nature of the object |
| al1950 | real | RA 1950 (hours decimal value) |
| de1950 | real | DEC 1950 (degrees decimal value) |
| al2000 | real | RA 2000 (hours decimal value) |
| de2000 | real | DEC 2000 (degrees decimal value) |
| l2 | real | galactic longitude (degrees) |
| b2 | real | galactic latitude (degrees) |
| sgl | real | supergalactic longitude (degrees) |
| sgb | real | supergalactic latitude (degrees) |
| f_astrom | int | precision flag on the celestial position |
| type | char | morphological type |
| bar | char | barred galaxy (B) |
| ring | char | galaxy with ring (R) |
| multiple | char | multiple galaxy (M) |
| compactness | char | Compact (C) or Diffuse (D) |
| t | real | morphological type code |
| e_t | real | actual error on t |
| lc | real | luminosity class code |
| e_lc | real | actual error on lc |
| logd25 | real | log10 of apparent major axis diameter d25 at 25 mag.arcsec-2(d25 in 0.1') |
| e_logd25 | real | actual error on logd25 |
| logr25 | real | log10 of axis ratio (major axis/minor axis) |
| e_logr25 | real | actual error on logr25 |
| pa | real | major axis position angle (North Eastwards) in degrees |
| brief | real | mean effective surface brightness (mag.arcsec-2) |
| e_brief | real | actual error on brief |
| bt | real | total B-magnitude |
| e_bt | real | actual error on bt |
| it | real | total I-magnitude |
| e_it | real | actual error on it |
| ubt | real | total U-B color |
| bvt | real | total B-V color |
| ube | real | effective U-B color |
| bve | real | effective B-V color |
| vmaxg | real | Apparent maximum rotation velocity of gas |
| e_vmaxg | real | actual error on vmaxg |
| vmaxs | real | Apparent maximum rotation velocity of stars |
| e_vmaxs | real | actual error on vmaxs |
| vdis | real | Central velocity dispersion (in km/s) |
| e_vdis | real | actual error on vdis |
| mg2 | real | Central Mg2 Lick index (in mag) |
| e_mg2 | real | actual error on mg2 |
| m21 | real | 21-cm line flux in magnitude (see definition in text) |
| e_m21 | real | actual error on m21 |
| mfir | real | far infrared magnitude (see definition in text) |
| vrad | real | heliocentric radial velocity from radio measurement (in km/s) |
| e_vrad | real | actual error on vrad |
| vopt | real | heliocentric radial velocity from optical measurement (in km/s) |
| e_vopt | real | actual error on vopt |
| v | real | mean heliocentric radial velocity (in km/s) |
| e_v | real | actual error on v |
| ag | real | galactic extinction in B magnitude from Schlegel et al. |
| ai | real | extinction due to inclination in B magnitude |
| incl | real | inclination between line of sight and polar axis (in degrees) |
| a21 | real | 21-cm self absorption in magnitude |
| lambda | real | luminosity index |
| logdc | real | log10 of apparent corrected diameter (dc in 0.1') |
| btc | real | total apparent corrected B-magnitude (corrected for inclination, galactic extinction and K-correction) |
| itc | real | total apparent corrected I-magnitude (corrected for same effects) |
| ubtc | real | total apparent corrected U-B color (corrected for the same effects) |
| bvtc | real | total apparent corrected B-V color (corrected for the same effects) |
| bri25 | real | mean surface brightness within isophote 25 (mag.arcsec-2) |
| vrot | real | maximum deprojected rotation velocity (km/s) of the gas |
| e_vrot | real | actual error on vrot |
| m21c | real | corrected 21-cm line flux in magnitude (see text) |
| hic | real | 21-cm index bt-m21c in magnitude |
| vlg | real | radial velocity with respect to the Local Group (km/s) |
| vgsr | real | radial velocity with respect to the GSR (km/s) |
| vvir | real | radial velocity corrected for LG infall onto Virgo (208 km/s) |
| v3k | real | radial velocity with respect to the CMB radiation (km/s) |
| modz | real | redshift distance modulus (from vvir and standard cosmological model) |
| mod0 | real | true distance modulus from some distance
criteria (TF-relation, FJ-relation, Lambda_c relation, ...) |
| mabs | real | absolute B-magnitude |
| function usage | type | Description |
| hl_names(pgc) | string | Comma separated list of all the designations for the object "pgc" |
| celposB(pgc) celposJ(pgc) |
string | Return the celestial position of object "pgc" in sexagesimal format |
| HyperLeda | Questions: leda@univ-lyon1.fr |