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HD 16721


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관련 글

Speckle Interferometry of Southern Double Stars. II. Measures from the CASLEO 2.15 Meter Telescope, 1995-1996
Relative astrometry is presented for 198 observations of 160 doublestars. The data were obtained at the 2.15 m telescope at the ComplejoAstronómico El Leoncito (Argentina) with a multianodemicrochannel array (MAMA) detector system. Five high-qualitynondetections are also reported. When judged against ephemeris positionsfor binaries with very well determined orbits, the separation residualsexhibit a root mean square deviation of13.2+3.4-1.9 mas and the position angle residualsexhibit rms deviation of 2.9d+0.8d-0.5d. Factorsaffecting the measurement precision are discussed.

Measurements of double stars 1993.67 - 1998.13
624 Micrometer Measurements of 224 pairs with a 32.5 cm Cassegrain, 719Measurements of 310 double stars with a 360 mm Newtonian are given.Tables 1 to 4 are available in electronic form only at the CDS130.79.128.5 or via http://cdsweb.u-strasbg.fr/Abstract.html

Binary star measurements made at Nice with the 50-cm reflector
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1989A&AS...77..125L&db_key=AST

Micrometer observations of double stars.8.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975ApJS...29..315H&db_key=AST

Mikrometermessungen von Doppelsternen. VI.
Not Available

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다음 그룹에 속해있음:

관측 및 측정 데이터

별자리:고래자리
적경:02h40m56.61s
적위:+04°52'14.6"
가시등급:7.367
적경상의 고유운동:4
적위상의 고유운동:-15.7
B-T magnitude:7.644
V-T magnitude:7.39

천체목록:
일반명   (Edit)
HD 1989HD 16721
TYCHO-2 2000TYC 50-606-1
USNO-A2.0USNO-A2 0900-00627292
→ VizieR에서 더 많은 목록을 가져옵니다.