Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.stsci.edu/~mperrin/ircal/refbinaries.html
Дата изменения: Wed Oct 27 01:53:18 2004 Дата индексирования: Sat Mar 1 06:44:02 2014 Кодировка: Поисковые слова: п п п п п п п п п |
The good folks at the US Naval Observatory's Washington Double Star catalog have put together a list of canditate calibration stars, selected on the basis of having well-known orbits. In general one can not just observe any old Hipparcos binary, since Hipparcos is a single-epoch catalog and orbits are not known for most of the stars there. Even for relatively distant binaries, where orbital motion is presumably less, the fairly large uncertainties in the Hipparcos proper motions render this approach less accurate. So always choose a target from the WDS calibration targets list if at all possible!
I present here a subset of stars from the WDS calibration candidates list, selecting those most useful given IRCAL's plate scale and field of view. This list is only intended to guide you in picking out a likely star to use; once you've selected one you really ought to look it up in the WDS to get the full ephemerides and correct orbital position for the date of observations.
Here is a Lick-format target list containing these binaries. All are bright NGS objects, between 5th - 9th magnitude at V.
WDS Name HD# Grade Reference Equinox Last Ephemeris Date Theta Rho 00057+4549 STT 547AB HD38 4 Pop1996b 2000 1994 1996-15 2001.00 182.5 5.973 00057+4549 STT 547AB HD38 4 Kiy2001 2001.00 182.3 6.068 02020+0246 STF 202AB HD12446 4 Sca1983f 2000 1982 1981-90 2001.00 270.9 1.819 02442+4914 STF 296AB HD16895 5 Hop1958 1900 1956 1960-80 2001.00 304.1 20.062 03368+0035 STF 422 HD22468 5 Hop1964b 1900 1954 1960-80 2001.00 269.8 6.672 05364+2200 STF 742 HD37013 5 Hop1973b 1960-00 2001.00 273.8 4.093 07201+2159 STF1066AB HD56986 5 Hop1960a 1900 1959 1960-00 2001.00 225.3 5.749 08122+1739 STF1196AB-C HD40167 4 Hei1996b 1996-34 2001.00 72.4 5.899 09144+5241 STF1321AB HD79210 4 Chg1972 2000 1970 2001.00 93.3 17.185 11182+3132 STF1523AB HD98231 1 Msn1995 1995 2001.00 268.7 1.828 12244+2535 STF1639AB HD108007 4 Ole2000b 2000 2000-01 2001.00 324.5 1.720 14131+5520 STF1820 HD124640 5 Kiy1998 1997 2001.00 117.8 2.575 16147+3352 STF2032AB HD146361 4 Sca1979 2000 2001.00 236.1 7.031 17153-2636 SHJ 243AB HD155885 4 Irw1996 2001.00 146.0 4.850 18055+0230 STF2272AB HD165341 1 Pbx2000b 2001.00 146.1 3.989 18428+5938 STF2398AB HD173739 4 Hei1987b 2000 1987 1985-35 2001.00 173.9 12.516 19121+4951 STF2486AB HD179958 5 Hle1994 2000 1991 2001.00 206.3 7.495 20462+1554 STF2725 HD197913 5 Hop1973b 1900 2001.00 10.8 6.078 20467+1607 STF2727 HD197963 4 Hle1994 2000 1993 2001.00 265.8 9.248 22038+6438 STF2863Aa-B HD209790 5 Zel1965 1950 1951 1960-00 2001.00 274.5 8.233 22266-1645 SHJ 345AB HD212697 5 Hle1994 2000 1990 2001.00 8.3 1.642