See Comet Iwamoto’s sprint by Leo, Most cancers and Gemini earlier than full Moon – Astronomy Now

February 15, 2019 - Comment

This extract of a high-resolution PDF finder chart appropriate for printing obtained by clicking on the graphic above exhibits the observe of Comet C/2018 Y1 Iwamoto from 10-20 February 2019. The comet is closest to Earth on 12 February at 20:10 UT when it lies zero.304 AU distant, or 118 instances the space of the Moon, and may be discovered traversing Leo



This extract of a high-resolution PDF finder chart appropriate for printing obtained by clicking on the graphic above exhibits the observe of Comet C/2018 Y1 Iwamoto from 10-20 February 2019. The comet is closest to Earth on 12 February at 20:10 UT when it lies zero.304 AU distant, or 118 instances the space of the Moon, and may be discovered traversing Leo at a fee of seven.2 levels/day. AN graphic by Ade Ashford.

Earlier than the sunshine from a waxing Moon turns into too obtrusive (full Moon happens on 19 February), take full benefit of any clear nights to catch a glimpse of swift Comet C/2018 Y1 Iwamoto because it gallops by the constellations of Leo, Most cancers and Gemini over the subsequent ten nights. Click on right here to obtain a high-resolution PDF finder chart appropriate for printing.

Found by Japanese astronomer Masayuki Iwamoto in pictures captured on 18 December 2018, C/2018 Y1 orbits the Solar each 148.7 years in a extremely eccentric path inclined to the ecliptic by an angle of 160 levels. Comet Iwamoto got here inside 1.three astronomical items (AU) of the Solar at perihelion on 6 February, however will plumb the depths of the photo voltaic system out past 245 AU at aphelion.

The movement of Comet C/2018 Y1 Iwamoto’s nucleus is clearly evident as a line on this six-minute publicity concluding at 20:34.four UT on 13 February, some 55 minutes earlier than its closest method to barred spiral galaxy NGC 2903 above proper. Picture credit score: Ade Ashford used a HyperStar-enabled Celestron eight″ Edge HD at f/2.1 together with a Starlight Xpress Ultrastar C CCD digicam.Comet C/2018 Y1 passes closest to Earth on 12 February at 20:10 UT when it lies zero.304 AU, or 45½ million kilometres away (some 118 instances the space of the Moon) and may be discovered traversing Leo at a fee of seven.2 levels/day. At opposition on 13 February, the comet transits round 12:30am GMT at an altitude exceeding 50 levels for an observer within the coronary heart of the British Isles.

Predictions point out that Comet Iwamoto may attain an built-in magnitude of +6 round closest method, however don’t miss any viewing alternatives owing to the waxing Moon’s glare. Newest experiences point out that C/2018 Y1 has a coma roughly one-third of a level throughout with a brief tail.

An in depth encounter with NGC 2903
C/2018 Y1 passes simply 3½ arcminutes to the southwest of magnitude +9 barred spiral galaxy NGC 2903 in Leo about 21:30 UT (9:30pm GMT) on 13 February. In reality, relying on the comet’s coma dimension and opacity, might the galaxy be obscured? Found by Sir William Herschel who catalogued it in 1784, NGC 2903 is seen in giant binoculars or small telescopes and lies about 30 million light-years from Earth. This galaxy shows beautiful spiral arms, so astrophotographers are suggested to organize for an ideal shot – climate allowing.

Watch C/2018 Y1 on-line
Comet Iwamoto’s shut method to NGC 2903 might be streamed by the Digital Telescope Challenge. Comply with this hyperlink to look at the conjunction dwell. This free on-line session is scheduled to begin at 21:00 UT (9pm GMT) on 13 February.

This topocentric ephemeris of Comet 2018 Y1 Iwamoto is computed for the centre of the British Isles (54°N, 2.5°W) at 22h UT (10pm GMT) on the dates proven. The comet’s proper ascension (R.A.) and declination (Dec.) are for the present (J2019.1) epoch; Magazine. is the expected visible magnitude; °/d is the comet’s day by day movement in levels; Delta is the space from Earth in astronomical items. AN computation and graphic by Ade Ashford/Minor Planet Ephemeris Service.



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