Comet Holmes is a periodic comet in the Solar System, discovered by the British amateur astronomer Edwin Holmes on November 6, 1892. Although normally a very faint object, Holmes became notable during
Outburst of Comet Holmes photographed by Iván Éder on 4 November 2007
10 November 1892, near the Andromeda Galaxy
Comet 17P/Holmes on 2 November 2007
On 25 October, the comet looked liked a bright new star in the constellation of Perseus.
In astronomy, magnitude is a measure of the brightness of an object, usually in a defined passband. An imprecise but systematic determination of the magnitude of objects was introduced in ancient time
Comet Holmes
…6, 1892, while he was conducting regular observations of the Andromeda Galaxy (M31). Its discovery in 1892 was possible because of an increase in its magnitude similar to the 2007 outburst; it brightened to an approximate magnitude of 4 or 5 before fading from visibility over a period of several weeks. The…
Light sources of different magnitudes. A very bright satellite flare can be seen in the night sky.