Detection of new nebulae by photography
| Other Authors: | |
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| Format: | Book |
| Language: | English |
| Published: |
Cambridge :
J. Wilson and Son,
1890
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| Series: | Annals of the Astronomical Observatory of Harvard College ;
v. 18, no. 6 Annals of the Astronomical Observatory of Harvard College ; v. 18, no. 6 |
| Subjects: |