© Digitised Sky Survey (DSS); Second Palomar Observatory Sky Survey (POSS-II)

The Rosette Nebula is well placed

Dominic Ford, Editor
From the Deep Sky feed

Objects: Caldwell 49
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The Rosette Nebula (C49; mag 9.0) in Monoceros will be well placed in the evening sky in coming weeks. On 30 December it will reach its highest point in the sky at around midnight local time, and on subsequent evenings it will culminate four minutes earlier each day.

From San Diego , it is visible between 18:58 and 04:27. It will become accessible at around 18:58, when it rises to an altitude of 18° above your eastern horizon. It will reach its highest point in the sky at 23:42, 62° above your southern horizon. It will become inaccessible at around 04:27 when it sinks below 18° above your western horizon.

At a declination of 5°03'N, it is visible across much of the world; it can be seen at latitudes between 75°N and 64°S.

Begin typing the name of a town near to you, and then select the town from the list of options which appear below.

At magnitude 4.3, Caldwell 49 is tricky to make out with the naked eye except from a dark site, but is visible through a pair of binoculars or small telescope.

The position of Caldwell 49 is as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Caldwell 49 06h32m10s 5°03'N Monoceros 4.3 0'00"

The coordinates above are given in J2000.0.

The sky on 30 Dec 2023

The sky on 30 December 2023
Twilight ends
Twilight begins

18-day old moon
Waning Gibbous


18 days old

Rise Culm. Set
Mercury 05:31 10:39 15:48
Venus 03:56 09:09 14:23
Moon 19:25 02:37 09:41
Mars 05:58 10:55 15:52
Jupiter 12:50 19:24 01:59
Saturn 10:02 15:33 21:04
All times shown in PST.


The circumstances of this event were computed using the DE430 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

Image credit

© Digitised Sky Survey (DSS); Second Palomar Observatory Sky Survey (POSS-II)


San Diego



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