C/2014 E2 Jacques
Closest to Sun on 2 July 2014 at 0.66AU
Closest to Earth on 28 August 2014 at 0.56AU
Maximum magnitude 6.0 in July 2014

C/2014 E2 Jacques on 2014 Aug 5 at 10:50UT
Taken remotely in Sierra Nevada using an I-telescope TEL T24 0.61-m f/6.5 astrograph + CCD, 3x1 minute exposure

C/2014 E2 Jacques lightcurve updated 2014 Sep 25

Below is my personal light curve of comet C/2014 E2 Jacques.
Purple vertical line indicates date of perihelion. The formula calculates H0=6.8 and n=4.4

Comet Jacques arrived at Perihelion on 2014 July 2 at a distance of 0.66AU. Unfortunately the comet was then on the far side of the Sun.
However, since the orbit was retrograde, comet Jacques rapidly approached Earth post-perihelion
and made a close pass on August 28 at a favourable 0.56AU.

My visual observations between March 17 to May 5 indicated that the comet was brightening at a rapid rate n=6
It exhibited a very large but faint 8' wide coma, which corresponded to a linear diameter of over 300,000kms.
However during May, a slowdown in activity occurred to that of a more typical comet n=4.
Comet Jacques has been around the Sun before (orbital period about 25,000 years)
During June, viewing was restricted to the first week as the comet approached evening twilight.
The magnitude 7 comet was situated in Monoceros during early evening hours.
The comet was within a degree of star cluster NGC 2264 on June 1.

C/2014 E2 Jacques and the Christmas Tree Cluster.
2014 May 30.37 UT: Canon 60Da camera and 300mm zoom lens cropped. 5x1 minute stack.
Visual magnitude m1=7.7, Coma Diameter=3', DC=5...25x100mm binoculars
Coma appears as a bright green disk. Ion tail is about 1 degree long.
Note Hubble Variable Nebula left of centre, appearing like a comet and Nebulosity near S Mon.
The Cone Nebula situated above comet is not visible.

C/2014 E2 Jacques
2014 June 10.37 UT: Canon 5D MkII camera 400mm f/2.8 cropped. 1 minute exposure. (C) Will Godward
Comet is situated only a few degrees above the horizon at a solar elongation of 20 degrees!
Star to the left of comet is SAO 95686 at magnitude 6.6
Visual estimate on June 9.37 = 7.0 through 25x100mm binoculars.

On June 21, it entered the SOHO LASCO C3 field of view in the 7 o'clock position.
It left the field of view on June 28 at the 4 'clock position. The comet appeared about 6th magnitude.

During early July, the comet was too close to the Sun for Earthbound observation.
However, it was an exceptional view from the STEREO Ahead spacecraft, which was situated much closer to the comet at 0.32AU in early July.
The ion tail dynamics were spectacular, with lengths achieving > 70 degrees after a disconnection event on July 4.

Comet C/2014 E2 Jacques in STEREO A HI2 July 2-5

IMAGES courtesy of the STEREO science team.

Back on Earth, the comet re-appeared out of morning twilight around mid July at magnitude 6, but very low in the northeast and favouring the Northern
On the morning of July 18, the magnitude 6.5 comet was situated in Taurus, a couple of degrees to the right of Beta Aurigae (El Nath) only 4
degrees above the horizon at 6am.
On the 20th, it was directly below El Nath in Auriga.
Moonlight interfered until the 26th. On this morning, the comet was 7 degrees above the northeastern horizon, at 5:50am.

August 2014 morning
The first 2 weeks of August offered the best views for us southerners before it trekked too far north.
On August 1, the magnitude 6.5 comet was situated near Omega Aurigae, 7 degrees above the northeastern horizon at 5:45am.
The comet moved slowly north-westwards and entered Perseus on the 6th.
On the 8th, it lied between star clusters NGC 1582 and NGC 1664.
By the time moonlight interfered on the 10th, the comet was situated too far north.

September 2014 evening
By early Setpember, comet Jacques reappeared over the northern evening horizon in Cygnus.
Moonlight interfered until the night of September 11, where the magnitude 8.5 comet was situated near 17 Cyg.
On the 14th, it was a degree East of the beautiful double star Albireo.
By the 18th the comet, now situated in Vulpecula, had faded to magnitude 9.0.
On the 20th, a close approach to the "coat hanger" star cluster occured.
Rapid fading continued and by month's end, when situated in Aquila, appeared magnitude 10.0.

C/2014 E2 Jacques and the Coat Hanger
2014 Sep 20 at 10:00UT
6x1 minute exposure. Canon 60Da and Sigma 70-200mm f2.8 lens
Visual magnitude 8.7, coma dia=5', DC=3

October 2014 evening

fading from Magnitude 10.0 to 12.0 in the constellation of Aquila