170P/Christensen (0170P)
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Type: Periodic
Perihelion date: 20 April 2023
Perihelion distance (q): 2.9
Aphelion distance (Q) : 5.5
Period (years): 8.6
Eccentricity (e): 0.30
Inclination (i): 10.1
JPL orbit diagram
COBS lightcurve
Eric Christensen discovered a 20th magnitude comet (2005 M1) in the course of the
Mt Lemon survey on 17 June.
Further observations show that it is a periodic comet with period of 8.6 years and will
reach perihelion at 2.93 AU in late January 2006. It has been identified in
observations made by NEAT in 1997, so the orbit is now secure and the comet has
received a numeric designation.
Observations (VEMag = visual equivalent magnitude)
Date
10x10 mag
Error
VEmag
Coma '
14-Sep-14
17.91
0.05
17.2
0.2
22-Sep-14
17.48
0.05
16.2
0.2
13-Oct-14
17.55
0.11
16.7
0.2
20-Oct-14
17.82
0.07
17.1
0.2
30-Aug-22
18.5
0.4
17-Sep-22
18.5
0.4
23-Sep-22
18.6
0.4
11-Oct-22
19.0
0.4
19-Oct-22
18.9
0.4
27-Oct-22
19.0
0.4
13-Nov-22
19.0
0.4
22-Nov-22
18.8
0.4
13-Sep-23
17.7
0.4
20-Sep-23
17.7
0.4
08-Oct-23
17.4
0.4
15-Oct-23
17.4
0.4
23-Oct-23
17.3
0.4
05-Nov-23
17.2
0.4
12-Nov-23
17.1
0.4
30-Dec-23
17.7
0.4
10-Jan-24
18.0
0.4
26-Jan-24
18.3
0.4
07-Feb-24
18.0
0.4
06-Mar-24
18.4
0.4