Left: The comet appeared low in the dawn sky on 9th July 2020 at 08.06 UT. I estimated the coma as 2nd magnitude. Image cropped with a 55 mm focal length lens. Topsfield, MA Town Hall is in the foreground. The gibbous Moon was in the sky. The Comet lies 6.0° E of the mag 2.6 star Theta Aurigae (the bright star in the right-hand side of the image).Right: 2020 July 18 at 02.03 UT. I estimated, with the naked-eye, the coma as 3rd magnitude and tail length 6° long. Image processed to bring out the ion tail. 200 mm lens on a tracking mount, 5 x 10 s exposures. The bright star on the left is Iota UMa, 2.9° from the comet.
Images taken with a DSLR camera
The comet on 14th-15th February 2019 at 23.59 UT. The Comet was another low surface brightness object, just after its closest approach to Earth.
Image (cropped) taken with a DSLR camera (Canon 500D) with a 530 mm focal length 106 mm refractor. 8x20 s exposures. North is towards the left. The gibbous Moon was in the sky.
The Comet lies 15.7' SW of the mag 9.5 star TYC 1953 1684 (the star is labeled in the non-thumnail).
The comet on 13th January 2019 at 01.51 UT. The comet was low surface brightness object in Ursa Major. About a month after perihelion and closest approach to Earth (after a spell of cloudy weather).
Image (cropped) taken with a DSLR camera (Canon 500D) with a 200 mm lens. 16x30 s exposures. North is towards the left. The bright star (Omicron UMa) near the left edge of the frame is 1.9° from the comet.
The comet on 15th February 2018 at 00.58 UT. The comet was an 11th mag object in Taurus. Although perihelion was due on 9th May, the comet continued to recede from the Earth.
106 mm refractor at f/8. 10x60 second exposures. Taken with a SBIG ST-402ME CCD camera with a V filter. North is to the bottom in the 28'x19' field. The bright star at the bottom is PPM 93121 (mag 9.1).
The comet was imaged on 16th May 2017 at 03.47 UT. I estimated the comet visually as 8th magnitude. The star just to the bottom-left is 9.8 mag HIP 74937. It lies in Bootes, moving south-west.
Taken with a DSLR camera (Canon 500D) with a 200 mm lens. 12x20 s exposures. North is to the bottom-left in the cropped field (1.1° wide).
The comet was a large (ghostly) glow, 83' SW of the globular cluster M14 in Ophiuchus. Taken on 5th April 2016 at 08.58 UT.
Taken with a DSLR (Canon 500D) on a 106 mm refractor at f/5. 8x15 second exposures. Cropped. The sky was slightly hazy and bright with reflected snow from the ground. Temp -6°C.
Taken on 11th January 2016 at 07.01 UT. The comet was a 6th mag object in Canes Venatici, on the border of Boötes.
Taken with a DSLR (Canon 500D) on a 85 mm refractor at f/7 (no field-flattener was employed). 8x20 second exposures. The target was near the edge of the frame. North is towards the upper-left and the field is about 90' wide, cropped.
Left: The comet on 10th January 2015 at 00.42 UT. The comet was a 4th mag object in southern Taurus. 10x20 second exposures. The comet is 38' from the bright star adjacent at the 5 o'clock position. Cropped. 200mm lens.
Middle: On 14th January 2015 at 00:47 UT. The image was processed to bring out the faint tail (P.A. measured at 71°), the dark area around the coma is an artifact of this processing. 6x20 second exposures. Cropped. 200 mm lens.
Right: On 20th January 2015 at 00:04 UT. The comet was now well north in Aries, 10° W of the Pleiades M45. 16x20 second exposures. Cropped. 55 mm focal length.
Images taken with a DSLR camera (Canon 500D) at ISO 800. North is to the bottom-left.
The comet on 5th August 2014 at 08.03 UT. The comet was a 7th mag object right on the border of Auriga and Perseus. Perihelion occurred 5 days previously.
106 mm refractor at f/8. 5x15 second exposures. Taken with a SBIG ST-402ME CCD camera. North is to the left in the 28'x19' field.
106 mm refractor at f/8. The first three images were obtained with a SBIG ST-402ME CCD camera.
The comet on 16th March 2014 at 09.36 UT. The comet is an 9th mag object in Aquila. Three weeks after perihelion, it is moving south-eastwards.
106 mm refractor at f/8. 3x60 second exposures.Taken with a SBIG ST-402ME CCD camera. North is to the left in the 28'x19' field.
The Comet near the Beehive open star cluster, M44. 7th November 2013 at 05.00 UT. The Comet was an easy binocular object. North is towards the right.
60 mm refractor operating at f/4.4 with 21x15 second exposures. Taken with a DSLR camera at ISO 800.
The Comet in Nautical twilight (10.01 UT) on 14th October 2013. 28 cm SCT (focal length 2800mm). 27' x 13' field. North is towards the left.
The comet might not be this faint, as a dust doughnut overlapped the comet! NGC 3121 is a 13th magnitude elliptical galaxy. Taken with a DSLR camera. 4x15 second exposures. North is towards the top.
By 7th November 2013 at 05.39 UT, the Comet appears considerately brighter. Conveniently it was located just 33' WSW of the 3.6 mag star Beta Virginis (brighest star in the image).
60mm refractor operating at f/4.4 with 21x15 second exposures. Taken with a DSLR camera (Canon 500D) at ISO 800.
Compare this image with that of Comet Lovejoy 2013 R1 (above) taken on the same morning. The exposures were virtually identical.
The comet on 13th March 2013 at 19.36 UT. The comet is an 2nd mag object low in the western dusk, only 15.8° elongation from the Sun. The altitude was just 3°. This is very like the view through binoculars.
100 mm focal length lens with a DSLR. ISO 800. From Rogerstown, Co Dublin.
The comet on 22nd July 2012 at 03.12 UT. The comet is an 11th mag object in Canes Venatici. It is moving south-east.
106 mm refractor at f/5. 10x20 second exposures.Taken with a SBIG ST-402 CCD camera. North is to the right in the 45'x30' field. Also two faint galaxies are visible in the image.
Left: The comet on 31st July 2011. From Stellafane star party, Vermont, USA 16X60 second exposures, started at 04.21 UT. North north-west is up.
Middle: The comet on 3rd September 2011. The comet is passing below the Coathanger in Vulpecula. The open cluster NGC 6802 is towards the top-left. 16X45 second exposures, midpoint 03.10 UT. ISO 800. North is up.
Right: 19th September 2011. 17x45 second exposures, midpoint 01.16 UT. ISO 800. North is top-right. The comet lies 16' from the star HIP 91169 in Hercules.
Far Right: 5thFebruary 2012. A quick exposure during morning twilight. 3x30 second exposures, midpoint 10.50 UT. ISO 400. North is towards the left. The comet was then 1.7° from the globular cluster M92 in Hercules. f/3.65.
All taken with a DSLR camera (Canon 500D). Field 2.4° by 1.6°. 106 mm refractor, apart from indicated, at f/5.
This periodic comet is passing close by the Earth in October 2010. It appeared as a low surface brightness object.
Left: 106mm refractor (f/5) with 6x15 second exposures. ISO 800 with DSLR camera, image cropped.
29th September 2010 at 20.04 UT.
Middle: 106mm refractor operating at f/8 with 8x30 second exposures. ISO 800 with DSLR camera, image cropped, north towards right.
6th October 2010 at 20.50 UT.
Right: 60 mm refractor operating at f/6.2 with 8x15 second exposures. ISO 800 with DSLR camera (Canon 500D), full frame (1.3° x 1.0°). 20th October 2010 at 05.35 UT.
The comet in a bright moonlit sky on 5th March 2009. Focal length 530 mm with 4X10 second exposures. The green colour of the comet is evident. Taken with a DSLR camera (Canon 350D).
This is usually a very faint periodic comet. However in late 2007 it suffered a tremendous outburst in brightness.
Taken on 19th October 2007 and about 18.30 UT. The comet was then low in the western sky in Boötes, the bright star is Eta Boötis. Composite of seven 15 second images taken with a DSLR camera (Canon 350D). ISO 1600. 60 mm refractor at 355mm focal length. The straight tail is faintly visible. That evening I estimated the magnitude of the comet as 5.9.
Photos (details) of Comet McNaught C/2006 P1 on 5th and 10thJanuary 2007. DSLR Camera (Canon 350D). This comet became a brilliant object from the southern hemisphere.
Photo (detail) taken on 12th Oct 2006. Imaged with a DSLR camera (Canon 350D) using a 60mm refractor at focal-length 390 mm. The faint tail is visible.
Never a very bright object, 73P/Schwassmann-Wachmann passed throught the field of the famous variable star R Corona Borealis. Imaged on 22nd April 2006. 60mm refractor, 355 mm focal-length with a DSLR camera (Canon 350D).
The comet passes near the M45 star cluster (Pleiades or Seven Sisters) on 8th January 2005. The green colour of the comet is evident. Imaged with a digital camera (Nikon 4500). 1 minute exposure.
Comet NEAT lies just north of M44 the Beehive Cluster in Cancer on 16th May 2004. Taken from Glencree, Co Wicklow. 50 mm camera lens, 2 minute exposure on Kodak Elite Chrome 200.
The comet was, at its best, a fine 3rd magnitude object in spring of 2002.
Both at Oristown, Kells, Co. Meath.
This comet was a binocular object in the summer of 2000.
21st July 2000 at 00.05 UT. 30 second exposure with a ST-7 CCD on a 480mm focal-length 70 mm refractor (Pronto). In the Dublin sky glow, with a waning gibbous moon. Somewhat hazy sky.
This comet was a spectacular naked-eye object, with a long tail, that passed near the pole. At the time it was 0.12 AU from the Earth.
The comet was then a 4th magnitude object in Andromeda, a little west of the Andromeda Galaxy M31. A faint tail is visible pointing upwards. 27th April 1990. From the Sugar Loaf, Co Wicklow. Camera lens used.