American Meteor Society
Radiants at 7pm
Radiants at Midnight
Radiants at 5am
No matter where you live, the first half of December provides some of the best meteor activity of the year. This activity will be tempered by a bright moon during the first week of the month. The next two weeks are moon-free and offer the meteor observer ample opportunities to view some celestial fireworks. In the northern hemisphere the sporadic rates are still strong plus you can also count on strong activity from the Geminids, which peak on December 13. There are also several minor radiants that add a few meteors each hour. All of these centers of activity are located high in the sky during the early morning hours this time of year. Much of the activity mentioned above can also be seen from the southern hemisphere. While the sporadic rates are not as strong as those seen from the north, they are stronger than the previous months and heading for a maximum in February. The warm, but short summer nights south of the equator make for some great viewing as long as the moon does not interfere.
During this period the moon reaches its last quarter phase on Thursday December 6th. At this time the moon is located ninety degrees west of the sun and rises near 2300 (11pm) local standard time (LST). This weekend the waning gibbous moon will rise during the early evening hours and will effectively spoil the sky the remainder of the night with its intense lunar glare. The estimated total hourly meteor rates for evening observers this week is near four for observers located at mid-northern latitudes and three for observers in mid-southern latitudes. For morning observers the estimated total hourly rates should be near twelve from the mid-northern hemisphere and seven from the mid-southern hemisphere. The actual rates will also depend on factors such as personal light and motion perception, local weather conditions, alertness and experience in watching meteor activity. Rates are reduced during this period due to moonlight.
The radiant (the area of the sky where meteors appear to shoot from) positions and rates listed below are exact for Saturday night/Sunday morning December 1/2. These positions do not change greatly day to day so the listed coordinates may be used during this entire period. Most star atlases (available at science stores and planetariums) will provide maps with grid lines of the celestial coordinates so that you may find out exactly where these positions are located in the sky. A planisphere or computer planetarium program is also useful in showing the sky at any time of night on any date of the year. Activity from each radiant is best seen when it is positioned highest in the sky, either due north or south along the meridian, depending on your latitude. It must be remembered that meteor activity is rarely seen at the radiant position. Rather they shoot outwards from the radiant so it is best to center your field of view so that the radiant lies at the edge and not the center. Viewing there will allow you to easily trace the path of each meteor back to the radiant (if it is a shower member) or in another direction if it is a sporadic. Meteor activity is not seen from radiants that are located below the horizon. The positions below are listed in a west to east manner in order of right ascension (celestial longitude). The positions listed first are located further west therefore are accessible earlier in the night while those listed further down the list rise later in the night.
Details of each active shower will return next week when the observing conditions improve.
The following radiants are expected to be active this week. Rates and positions are exact for Saturday night/Sunday morning .
| SHOWER | DATE OF MAXIMUM ACTIVITY | CELESTIAL POSITION | ENTRY VELOCITY | CULMINATION | HOURLY RATE | CLASS |
| RA (RA in Deg.) DEC | Km/Sec | Local Standard Time | North-South | |||
| Dec. Phoenicids (PHO) | Dec 06 | 01:00 (015) -53 | 18 | 19:00 | <1 – <1 | III |
| Andromedids (AND) | Nov 09 | 01:28 (022) +55 | 19 | 20:00 | <1 – <1 | III |
| Northern Taurids (NTA) | Nov 13 | 05:03 (076) +26 | 29 | 00:00 | 1 – <1 | II |
| November Orionids (NOO) | Nov 30 | 06:10 (093) +15 | 44 | 01:00 | 2 – 1 | II |
| Geminids (GEM) | Dec 13 | 06:47 (102) +34 | 35 | 02:00 | 1 – <1 | I |
| Puppid-Velids (PUP) | Dec 07 | 08:00 (120) -45 | 40 | 03:00 | <1 – 1 | II |
| Sigma Hydrids (HYD) | Dec 06 | 08:04 (121) +04 | 61 | 03:00 | 1 – 1 | II |
| Dec. Kappa Draconids (DKD) | Dec 03 | 12:17 (184) +71 | 43 | 07:00 | <1 – <1 | IV |
Just saw a brief bright light falling to the earth in the south. I live in West Tennessee.
I saw what appeared to be a very prominent bright purplish-blue light fall in the western sky at around 9:35 pm on Dec. 4th and I live in western kentucky.
Last night around 9:30 pm I saw an extremly bright meteor traveling from East to West. It seemed to be very low or close. Not arcing at all, but traveling as an airplane would. It lasted about 15 seconds or the entirety of my viewing spectrum. Awesome!
Dec 3, 2012, about 9;00pm, facing east – the brightest fireball falling straight down in front of me! It lasted about 5 seconds and suddenly disappeared.
I saw my first meteor with my own eyes. It was bright green and vivid. It terrified me at first. My poor boyfriend got the receiving end of that phone call and called me crazy. But I’m glad I was able to confirm it was a meteor from a few comparison pictures.
Have never seen a meteor before, but think I saw one this morning. Driving to work – traveling south on I-35E in Lewisville, TX around 6:43am – saw a long streak of bright white followed by a large flash of light (almost like a small explosion) and then it was gone. I’ve seen shooting stars before but this was completely different.
12-7-2012 As I was leaving for work this morning around 6:45 am CST. I was heading west from Sulphur, Louisiana, I observed a bright ball with a greenish tail coming from high north sky traveling south west across the western sky! I don’t know what it was..but I think it may have been a meteor.
I also saw a bright shining ball of light with a green tail at 6:45am December 7th. The light pulsated for a moment and then shot off towards the horizon. I’m thinking it was a meteor. I live in Dallas Texas
On December 7th, 2012, 10:15pm, my husband and I were driving north on Interstate 5, in Fernadale, Washington, about fifteen minutes from the Canadian border when I saw a brilliant ball of light coming towards the southwest until it got close to the ground and ended with a great flash. I have never seen anything like it!