Observational results for eight long-period comets observed far from the Sun

Home

All issues

Volume 561 (January 2014)

A&A, 561 (2014) A6

Full HTML

Free Access

Table 2

Observing circumstances.

Comet	Observation time^a (UT)	r^b [AU]	Δ^c [AU]	a^d [°]	PA^e [°]	VV^f [°]	I/O^g	Filters^h	Nightⁱ

C/2005 L3	2009-May-28 23:07	6.64	6.25	8.34	138.6	107.9	O	R [600]	p
C/2005 S4	2009-May-30 01:55	7.52	7.28	7.63	188.3	114.9	O	V [8 × 600], R [7 × 600]	p
C/2007 JA21	2009-May-29 01:30	8.47	7.48	1.61	178.9	9.3	O	V [4 × 600], R [7 × 600]	p
C/2007 M1	2009-May-30 00:49	7.69	6.94	5.31	202.5	108.5	O	R [3 × 600]	p
C/2008 FK75	2011-Jun.-28 02:17	5.01	5.00	11.7	238.4	290.3	O	V [8 × 300], R [9 × 300],	pp
								I [8 × 300]
C/2009 S3	2011-Jun.-28 03:26	6.57	6.58	8.87	238.3	280.5	I	V [8 × 300], R [11 × 300],	pp
								I [8 × 300]
C/2010 R1	2011-Jun.-27 22:09	6.09	5.20	3.28	151.0	97.4	I	V [4 × 300], R [10 × 300],	pp
								VI [4 × 300]
C/2011 L4	2011-Jun.-28 00:04	7.70	6.85	1.84	107.3	27.2	I	R [7 × 300]	pp

Notes.

^(a)

UT time at the beginning of the imaging sequence.

^(b)

Heliocentric distance.

^(c)

Geocentric distance.

^(d)

Phase angle.

^(e)

Position angle of the extended Sun-target radius vector.

^(f)

Position angle of the target’s heliocentric velocity vector.

^(g)

Orbital branch of observation; I: Inbound; O: Outbound.

^(h)

For each filter, the total integration time (number of images × exposure time).

⁽ⁱ⁾

Quality of the night; p: photometric; pp: partly photometric.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.