Sentences with phrase «arcseconds per»

Other measurements indicate that the nebula's bright portion is expanding at a rate of 6.8 arcseconds per century, which would put the nebula's age between 3,000 and 4,000 years.

For comparison, the Wide Field Camera 3 on the Hubble Space Telescope spans 0.04 to 0.13 arcseconds per pixel, depending on the detector.

Because TESS is designed to conduct a wide survey, its pixels span a large part of the sky — 21 arcseconds per pixel, to be exact.

The extremely dim companion object was observed to share the same high proper motion as Epsilon Indi — around 4.7 arcseconds per year — from the perspective of an observer in the Solar System.

Fomalhaut moves across the sky at 0.425 arcseconds per year, which is the apparent width of a penny seen from five miles away.

The proper motion of the centre of mass is about 3620 mas (milli - arcseconds per year toward the west and 694 mas / y towoard the north, giving an overall motion of 3686 mas / y in a direction 11 ° north of west.

[1] The VISION survey covers approximately 18.3 square degrees at a scale of about one - third of an arcsecond per pixel.