30P/Reinmuth (0030P)
Type: Periodic
Perihelion date: 17 August 2024
Perihelion distance (q): 1.8
Aphelion distance (Q) : 5.7
Period (years): 7.2
Eccentricity (e): 0.51
Inclination (i): 8.1
JPL orbit diagram
COBS lightcurve
Atlas
The comet was discovered during the course of a regular photographic asteroid
survey by Karl Reinmuth at Heidelberg Observatory on a photograph exposed on 22
February 1928. The comet's brightest apparition was that of 1928. At the time of
discovery and for a few days thereafter, astronomers reported the magnitude as about
12 or 12.5.
The return of 1935 was not as favourable and the comet only reached magnitude 15.
A close approach to Jupiter in 1937 caused the perihelion distance to increase from
1.9 to 2.0 AU and the orbital period to increase from 7.23 to 7.69 years. The comet
did not experience a return as favourable as that of 1928 through the 1980 apparition
and did not become brighter than magnitude 17.
The comet will approach 0.52 AU from Jupiter on 28 November 2020, which is
expected to decrease the perihelion distance from 1.88 AU to 1.81 AU and the orbital
period from 7.32 to 7.22 years.
Observations (VEMag = visual equivalent magnitude)
Date
10x10 mag
Error
VEmag
Coma '
22-Nov-16
17.88
0.04
16.8
0.2
19-Dec-16
18.16
0.05
17.8
0.2
26-Dec-16
17.86
0.02
16.9
0.2
22-Jan-17
17.88
0.08
16.5
0.4
17-Apr-17
17.10
0.11
15.9
0.2
17-Mar-18
19.09
0.05
18.9
0.2
03-Nov-23
18.7
0.4
13-Nov-23
18.6
0.4
02-Dec-23
18.8
0.4
09-Dec-23
18.7
0.4
29-Dec-23
18.9
0.4
09-Jan-24
18.8
0.4
27-Jan-24
19.0
0.4
07-Feb-24
18.6
0.4