凭着经验我用7×50的双筒镜看到过巴纳德星系
观测经验不足的自然没那么大几率看见。如果你要更多的例子,这里还有一个,截自:http://www.astronomy-mall.com/Ad ... p.Space/barnard.htm
Binocular Observations: One of the biggest surprises I had uncovered was that Barnard's Galaxy is a "binocular object" and a fairly easy one at that. Jay Reynolds Freeman, an experienced observer from the "Bay Area" of California, USA was describing his observations of the galaxy on the Usenet forum sci.astro.amateur. He wasusing 11 x 80mm and 10 x 50mm binoculars. I was amazed, as it had never occurred to me that NGC 6822 was visible in anything smaller than a 4-inch richfield telescope. I then contacted Brian Skiff inquiring if he had made similar observations. He wrote that he was able to detect the galaxy with only a 7 x 35mm binoculars, while a larger 10 x 50mm model easily revealed a faint smudge elongated north-south. These observations were carried out under fairly dark (visual magnitude ~ 6.5) skies. The relatively bright visual magnitude combined with large size make this galaxy a good challenge for binoculars. The sharp, high-contrast image in good quality binoculars has greatly expanded the "list" of viewable deep-sky objects.
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