Position of centre R. A.: 0h 36m. Decl: + 40° 30'. Observer: Dr. Isaac Roberts. Instrument: Reflector. Place: Crowborough, Sussex. Aperture: 20 in. Focal length: 98 in. Exposure: 4 hours
<bdi><a href="https://en.wikipedia.org/wiki/en:Isaac_Roberts" class="extiw" title="w:en:Isaac Roberts"><span title="Welsh astronomer">Isaac Roberts</span></a>
</bdi>
29 December 1888<div style="display: none;">date QS:P571,+1888-12-29T00:00:00Z/11</div>
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