Дата создания: 29.11.2015 16:35
Никнейм пользователя: antares48
Комментарий: След оценка на яркостта на кометата трябва ли да се използва редукционната формула за привеждане на блясъка към 6.78см апертура? М=m-a(D-D0)

Дата создания: 2.04.2015 23:41
Никнейм пользователя: Charles Bell
Комментарий: More images of C/1956 R1 (Arend-Roland) on page 118 of Atlas of Cometary Forms-NASA SP-198 (public domain on NASA Tech server) http://ntrs.nasa.gov/search.jsp?N=0&DocumentID=19700002956

Дата создания: 28.12.2014 22:03
Имя гостя: It's a relief to find soemone who can explain things so well
Комментарий: It's a relief to find soemone who can explain things so well

Дата создания: 19.05.2014 14:01
Имя гостя: Jean Meeus
Комментарий: Why has the object not yet receive a cometary designation by the Minor Planet Center? For the MPC, it is still 2013 UQ4, not C/2013 UQ4. Jean Meeus

Дата создания: 17.05.2014 00:48
Никнейм пользователя: Taras Prystavski
Комментарий: Object received the designation C/2014 J1 (Catalina). Follow this link: http://www.minorplanetcenter.net/mpec/K14/K14K04.html

Дата создания: 16.05.2014 23:46
Никнейм пользователя: Artom
Комментарий: Объект получил обозначение C/2014 J1 (Catalina). http://www.minorplanetcenter.net/mpec/K14/K14K04.html

Дата создания: 8.05.2014 20:33
Имя гостя: Ellen Doyle
Комментарий: I was looking at JPL's close approach data and from the observation made on 5-6-14 the close approach date is wrong. It will be closest to earth on 5/15/14 at 0.12 AU and further away on 5/29/14 it is 0.168 AU. I am not an astronomer and maybe I am confused on this.

Дата создания: 8.05.2014 12:46
Имя гостя: Marek Biely (Castor 98)
Комментарий: Congratulations, Artyom and Taras! Now it looks that the period is only 491 years, so the comet isn´t new from the Oort cloud. I´m a bit afraid that the comet will be very diffuse when it will be close to Earth. But that doesn´t mind very much because it probably will be binocular object. I look forward to this comet. Congratulations again!

Дата создания: 8.05.2014 12:38
Имя гостя: H. Sato
Комментарий: Yes I also observed it as a comet by iTelescope T17. The total R-band magnitude was estimated as 14.5 within a circular aperture of radius 12".8. The outer coma was not imaged on 6 stacked images of 30-sec exposure.

Дата создания: 8.05.2014 01:32
Имя гостя:
Комментарий: Excellent article. This comet is currently visible above northern horizon and does not set for northern latitude observers. Charles Bell