| Comet | C/2017 E4 (Lovejoy) |
|---|
| User | AHale |
|---|
| User`s name | |
|---|
| Observation's time (UT) | 2017-03-25 11:16:00 |
|---|
| Tool | 41-cm reflector |
|---|
| Observation's place | Cloudcroft |
|---|
| Comparison stars source | NH - North Polar Sequence (publ. by Henden and Kaitchuck, 1982) |
|---|
| Method | |
|---|
| Magnitude | 10.0 |
|---|
| Coma diameter(') | 3.0 |
|---|
| Tail's length | Not set |
|---|
| Condensation | 4 |
|---|
| Positional angle of tail | Not set |
|---|
| Bortl's scale | Not set |
|---|
| Aperture | 40.64 |
|---|
| Focal length (mm) | 1828.8 |
|---|
| Type of tool | L - Newtonian reflector |
|---|
| Magnification | 70.3 |
|---|
| Field of view (°) | 0 |
|---|
| SQM-L in zenith | |
|---|
| Light pollution zone | Blue |
|---|
| Lm | |
|---|
| Comment | C/2017 E4 was very easy to see; the motion was obvious within a few minutes. |
|---|
| Morris Format | 2017 Mar 25.47 UT: m1=10.0, Dia.=3.0', DC=4 ...40.64-cm L (70.3x) ...Alan Hale (Cloudcroft, U.S.A.) |
|---|
