minute of arc

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minute of arc

(arc minute; arc min) See arc second.
References in periodicals archive ?
arcsecond One sixtieth of an arcminute, or 1/3600 of a degree.
A prominent magnitude 9 yellow star (HD 20224) is situated about 4 arcminutes to the north-east.
Declination is expressed in degrees, arcminutes, and arcseconds north (+) or south (-) of the celestial equator.
If two objects lie a quarter degree apart, astronomers might note that as 15 arcminutes, abbreviated 15'.
Given for each star are its separation in arcminutes and the direction of the fainter star from the brighter one, then the magnitude, spectral type, and distance in light-years of each.
I was amazed to find that I could remove and replace the mount on this base plate and maintain polar alignment to within an arcminute or two.
M27 is of course somewhat larger (on the sky), about 8 arcminutes long, whereas M76 is about 3 arcminutes.
In 2008 the angular separation is closer to 42 arcminutes, and it will be after 2060 before the separation is under 30 arcminutes (0.
It's small (about 8 by 4 arcminutes in extent) and presents a pallid face to small scopes.
8, and lies close to Regulus, only 12 arcminutes away from Leo's brightest star.
By mid-April next year, they'll be only 8 arcminutes apart as seen from Earth, and for a few days the Sun's interference will disrupt the ability of ground controllers to send the spacecraft any commands.
10 arcminutes If you aim your binoculars or telescope towards Delta Telescopii (see skymap on p.