SJAA

Ephemeris

Comet Comments

Don Machholz


A new comet, discovered from Australia, is fading in our evening sky. Meanwhile, Comet Lee is in our morning sky while a fainter Periodic Comet Tempel 2 is in our evening southern sky.

Comet Lynn (1999 N2): Daniel Lynn of Victoria Australia discovered this comet on July 13. He was using handheld 10x50 binoculars to find this seventh-magnitude object. The comet will continue moving north in the evening sky as it pulls away from both the earth and sun.

COMET HUNTING NOTES: Lynn's discovery is the fourth consecutive comet to be visually discovered from Australia, and all four have been found in the past 12 months. Of the last nine comets found visually, seven have been discovered by Australians.

Ephemerides

C/1999 H1 (Lee)
Date	R.A. (2000)   Dec	El	Sky	Mag
08-05	07h23.3m	+38d23'	30d	M	7.4
08-10	07h15.4m	+40d16'	36d	M	7.6
08-15	07h06.5m	+42d15'	42d	M	7.8
08-20	06h56.0m	+44d23'	50d	M	8.0
08-25	06h43.1m	+46d43'	57d	M	8.1
08-30	06h26.5m	+49d17'	65d	M	8.2
09-04	06h04.2m	+52d05'	73d	M	8.3
09-09	05h33.4m	+54d58'	82d	M	8.4
09-14	04h50.3m	+57d36'	92d	M	8.4
09-19	03h51.6m	+59d14'	102d	M	8.5
09-24	02h40.6m	+58d44'	114d	M	8.6
09-29	01h30.1m	+55d21'	125d	M	8.7
10-04	03h02.5m	+49d30'	135d	M	9.0
10-09	23h50.8m	+42d26'	141d	M	9.2

Periodic Comet Tempel 2 (P/10)
Date 	R.A. (2000)   Dec	   El	Sky	Mag
08-05	17h08.3m	-19d20'	125d	E	10.5
08-10	17h13.7m	-20d59'	122d	E	10.5
08-15	17h20.3m	-22d34'	119d	E	10.5
08-20	17h28.3m	-24d05'	116d	E	10.5
08-25	17h37.5m	-25d30'	114d	E	10.6
08-30	17h47.9m	-26d48'	111d	E	10.6
09-04	17h59.3m	-27d59'	109d	E	10.7
09-09	18h11.8m	-29d01'	107d	E	10.7
09-14	18h25.2m	-29d54'	105d	E	10.8
09-19	18h39.3m	-30d37'	103d	E	10.9
09-24	18h54.1m	-31d09'	101d	E	11.0
09-29	19h09.4m	-31d31'	99d	E	11.1
10-04	19h25.0m	-31d41'	98d	E	11.2
10-09	19h40.9m	-31d41'	96d	E	11.3

Comet Lynn
Date	R.A. (2000	   Dec	El	Sky Mag
08-05	12h11.6m	+17d19'	46d	E	8.6
08-10	12h24.1m	+20d41'	44d	E	9.1
08-15	12h33.7m	+23d22'	43d	E	9.5
08-20	12h41.5m	+25d32'	41d	E	9.9
08-25	12h48.1m	+27d22'	40d	E	10.4
08-30	12h54.0m	+28d56'	39d	E	10.8
09-04	12h59.5m	+30d19'	38d	E	11.1
09-09	13h04.7m	+31d34'	38d	E	11.5
09-14	13h09.8m	+32d44'	38d	E	11.8
09-19	13h14.9m	+33d51'	39d	E	12.1
09-24	13h20.0m	+34d57'	40d	E	12.4
09-29	13h25.1m	+36d02'	41d	E	12.7

Elements

Object:			Lee
Peri. Date:		1999 07 11.1657
Peri. Dist (AU):	0.708308 AU
Arg/Peri (2000):	040.6689 deg.
Asc. Node (2000):	162.6375 deg.
Incl (2000):		149.3558 deg.
Eccen:			1.00
Orbital Period:		Long Period
Ref:			MPC 34421
Epoch:			1999 07 11
Absol. Mag/"n":		7.0/4.0

Object:			Lynn
Peri. Date:		1999 07 23.0274
Peri. Dist (AU):	0.761304 AU
Arg/Peri (2000):	357.7842 deg.
Asc. Node (2000):	254.6463 deg.
Incl (2000):		111.6658 deg.
Eccen:			1.0
Orbital Period:		Long Period
Ref:			MPC 35208
Epoch:			1999 07 23
Absol. Mag/"n":		9.5/4.0

Object:			P/Tempel 2
Peri. Date:		1999 09 08.41663
Peri. Dist (AU):	1.481683 AU
Arg/Peri (2000):	195.02016 deg.
Asc. Node (2000):	118.21147 deg.
Incl (2000):		011.97662 deg.
Eccen:			0.5228125
Orbital Period:		5.47 years
Ref:			NK640
Epoch:			1999 08 10
Absol. Mag/"n":		9.0/5.0
Don Machholz (530) 346-8963
DonM353259@aol.com.
members.aol.com/cometcom


Don Machholz; last updated: October 04, 2007 Prev Next