| Comet | 141P/Machholz
|
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| User | AHale |
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| User`s name | |
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| Observation's time (UT) | 2015-09-12 11:16:00 |
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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 | 12.3 |
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| Coma diameter(') | 1.5 |
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| Tail's length | Not set |
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| Condensation | 1.5 |
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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 | 228.6 |
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| Field of view (°) | 0 |
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| SQM-L in zenith | |
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| Light pollution zone | Blue |
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| Lm | |
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| Comment | The comet was in bright zodiacal light (I could not convincingly see the comet at 70x, the higher magnification helped in making the background sky darker). |
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| Morris Format | 2015 Sep 12.47 UT: m1=12.3, Dia.=1.5', DC=1.5 ...40.64-cm L (228.6x) ...Alan Hale (Cloudcroft, U.S.A.) |
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