The brightness evolution has slowed down just before the perihelion passage. But now it is so bright as 6.2 mag (Sept. 18, Chris Wyatt). In the Southern Hemisphere, it is observable in the morning sky until mid September. Then it is observable in the evening sky from late September to mid October. In the Northern Hemisphere, it is not observable until late December when the comet will fade down to 13 mag.
Appearing in the morning sky again. Now it is so bright as 7.1 mag (Sept. 17, Marco Goiato). It will be observable in good condition in the Southern Hemisphere after this. But it keeps low in the Northern Hemisphere.
The brightness evolution has slowed down just before the perihelion passage. But now it is bright as 9.4 mag (Sept. 18, Chris Wyatt). It keeps observable in good condition until early November in the Southern Hemisphere. In the Northern Hemisphere, it is observable only in the evening low sky from late September to mid November. But it will be observable in excellent condition after 2015 January while the comet will be fading. It will pass extremely close to Mars on Oct. 19.
It brightened up to 6.0 mag from July to August (July 24, Maik Meyer). Now it is fading. But it is bright as 8.7 mag still now (Sept. 19, Maik Meyer). It keeps observable in good condition until November in the Southern Hemisphere, or December in the Northern Hemisphere.
It brightened rapidly in outburst in mid October in 2013. It will be fading gradually after this. But it is bright as 11.0 mag still now (Sept. 18, Chris Wyatt). In the Southern Hemisphere, it keeps observable in good condition for a long time until the comet fades out. In the Northern Hemisphere, it keeps extremely low after this.
Now it is 14.7 mag (Aug. 29, iTelescope Observatory, Mayhill). In the Northern Hemisphere, it will be observable at 12-13 mag in excellent condition from 2014 summer to 2015 spring. In the Southern Hemisphere, it will locate low around the highlight.
New bright comet. Now it is 12.9 mag and visible visually (Sept. 18, Chris Wyatt). It will approach to the earth in December and January, and it is expected to brighten up to 8 mag. In the Southern Hemisphere, it keeps observable in excellent condition until late January. In the Northern Hemisphere, it keeps extremely low until mid December. But after that, it will be observable in excellent condition.
Now it is 13.9 mag (Aug. 29, iTelescope Observatory, Mayhill). It keeps observable for a long time after this while the comet will be fading gradually.
No bright outburst was reported in July and August. It will be unobservable in mid September in the Northern Hemisphere, or in late October in the Southern Hemisphere.
Now it is 12.8 mag (Aug. 19, Marco Goiato). It keeps bright as 13-14 mag for a long time from 2013 to 2014.
Originally posted here:
Weekly Information about Bright Comets (2014 Sept. 20: North)