| Comet | C/2013 X1 (PANSTARRS) |
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| User | AHale |
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| User`s name | |
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| Observation's time (UT) | 2016-01-03 03:07:00 |
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| Tool | 41-cm reflector |
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| Observation's place | Cloudcroft |
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| Comparison stars source | NH - North Polar Sequence (publ. by Henden and Kaitchuck, 1982) |
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| Method | S - Sidgwick`s method |
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| Magnitude | 9.4 |
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| Coma diameter(') | |
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| Tail's length | Not set |
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| Condensation | Not set |
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| Positional angle of tail | Not set |
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| Bortl's scale | Not set |
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| Aperture | 40.64 |
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| Focal length (mm) | 1828.8 |
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| Type of tool | L - Newtonian reflector |
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| Magnification | Not set |
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| Field of view (°) | Not set |
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| SQM-L in zenith | |
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| Light pollution zone | Green |
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| Lm | |
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| Comment | When I saw it for the first time in 2016 (January 3.13) it had clearly brightened significantly, to m1 = 9.4 (which may be a bit of an underestimate, as I was unable to convincingly detect it in 10x50 binoculars due to nearby stars of similar brightness). |
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| Morris Format | 2016 Jan 3.13 UT: m1=9.4 ...40.64-cm L ...Alan Hale (Cloudcroft, U.S.A.) |
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