Lynd 640 nebula
Lynd 640 (LDN 640) is a dark nebula located in the constellation of . Lynd's Catalog of Dark Nebula contains 1,700 dark nebulae. This catalog complements the Barnard Catalogue, with the nearby Barnard nebula listed if applicable. Here are the key stats on LDN 640:
| Lynd #: | LDN 640 |
| Right Ascension: | 19:22.5 |
| Declination: | 4:06:00 AM |
| Area (square degrees): | 1.620°2 |