松紧带
发表于 2025-3-23 11:20:04
Amateur Supernova Hunting in the 21st Century. He discovered two supernovae photographically using a 40-cm Newtonian reflector and later went on to become a professional astronomer. His discoveries were of 1957B in M 84 (NGC 4374) on April 23 of that year (3 days before the first ever BBC . program by Patrick Moore) and 1961H in NGC 4564 on Ma
epicondylitis
发表于 2025-3-23 15:08:20
The Discoverers Themselvess who I have not described in detail, but who have also checked through tens of thousands of images to make their discoveries. However, I do feel that the patrollers described below are not only amazingly prolific but incredibly professional, too. I will start with the biggest name of all, namely Bo
抵消
发表于 2025-3-23 19:35:55
Searching the Messier Galaxiess usually assumed to be identical to M 101. The Messier galaxies are bright, which is why they could be spotted with primitive 18th century telescopes. With the equipment now in many amateurs’ hands, they can easily be checked visually for supernovae. The majority of the Messier galaxies are best pl
新字
发表于 2025-3-23 22:20:12
Searching the Caldwell Galaxiesoore in an attempt to list all of the “easy” deep sky objects not catalogued by Charles Messier in his 18th century catalogue. Although the Messier catalogue objects are some of the easiest for Northern Hemisphere astronomers to hunt down, the catalogue is not exhaustive and there are quite a few ob
Iatrogenic
发表于 2025-3-24 05:39:53
Observing Supernova Remnantsthe past 1,000 years. Their remnants, as well as those of other suspected supernovae, have been studied in detail by professional astronomers. Indeed, throughout the night sky a wealth of supernova remnants (SNRs) are known. Dave Green, an astronomer at the Mullard Radio Astronomy Observatory in Cam
词汇记忆方法
发表于 2025-3-24 08:00:46
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跑过
发表于 2025-3-24 11:49:30
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elastic
发表于 2025-3-24 16:32:02
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通知
发表于 2025-3-24 20:06:42
Amateur Supernova Hunting in the 21st Centuryy 2 of that year. Both discoveries were very bright ones. 1957B was discovered at magnitude 12.5, and 1961H was discovered at mag 11.2. Indeed 1961H was one of the brightest supernova discoveries ever made (number 10 in my list).
Collar
发表于 2025-3-25 02:19:52
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