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A monthly publication of The Oakland Astronomy Club - A member society of the  
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ASTRONOMICAL LEAGUE

This website created by
Kevin M. Berg

   

Observation

   

Observing Site Contacts

For information on contacts for the next observing session, check out our Event Calendar page.

The Sky at a Glance

Lunar Phases*

Lunar Phases

*Lunar Phases .GIF animation by Ed Stephan (stephan@cc.wwu.edu). Check out the Virtual Reality Moon Phase Pictures to view the phase of the moon for any date and time from 1800 to 2199 A.D.

Here are the lunar phases for 2007, in case you're interested in planning your observing sessions around them.

New Moon
New Moon
First 1/4
First Quarter
Full Moon
Full Moon
Last 1/4
Last Quarter

2007 Phases of the Moon

Universal Time

2007 Phases of the Moon
Universal Time
NEW MOON FIRST QUARTER FULL MOON LAST QUARTER d h m d h m d h m d h m JAN. 3 13 57 JAN. 11 12 45 JAN. 19 4 01 JAN. 25 23 01 FEB. 2 5 45 FEB. 10 9 51 FEB. 17 16 14 FEB. 24 7 56 MAR. 3 23 17 MAR. 12 3 54 MAR. 19 2 43 MAR. 25 18 16 APR. 2 17 15 APR. 10 18 04 APR. 17 11 36 APR. 24 6 36 MAY 2 10 09 MAY 10 4 27 MAY 16 19 27 MAY 23 21 03 JUNE 1 1 04 JUNE 8 11 43 JUNE 15 3 13 JUNE 22 13 15 JUNE 30 13 49 JULY 7 16 54 JULY 14 12 04 JULY 22 6 29 JULY 30 0 48 AUG. 5 21 20 AUG. 12 23 03 AUG. 20 23 54 AUG. 28 10 35 SEPT. 4 2 32 SEPT. 11 12 44 SEPT. 19 16 48 SEPT. 26 19 45 OCT. 3 10 06 OCT. 11 5 01 OCT. 19 8 33 OCT. 26 4 52 NOV. 1 21 18 NOV. 9 23 03 NOV. 17 22 33 NOV. 24 14 30 DEC. 1 12 44 DEC. 9 17 40 DEC. 17 10 18 DEC. 24 1 16 DEC. 31 7 51

Deep Sky Objects

Most of these objects will require at least binoculars to see. Please consult a star chart for more precise location information.

Open Cluster
Open
Cluster
Globular Cluster
Globular
Cluster
Nebula
Nebula
 
Planetary Nebula
Planetary
Nebula
Galaxy
Galaxy
 

Globular Cluster   M-2: Globular cluster in Aquarius.

Globular Cluster   M-15: Globular cluster in Pegasus.

Planetary Nebula   M-27: Planetary Nebula (The Dumbell Nebula) in Vulpecula.

Open Cluster   M-29: Open cluster in Cygnus.

Galaxy   M-31: Spiral galaxy (Andromeda Galaxy) in Andromeda.

Open Cluster   M-32: Elliptical galaxy in Andromeda.

Galaxy   M-33: Spiral galaxy (Triangulum Galaxy) in Triangulum.

Open Cluster   M-34: Open cluster in Perseus.

Open Cluster   M-35: Open cluster in Gemini.

Open Cluster   M-36: Open cluster in Auriga.

Open Cluster   M-37: Open cluster in Auriga.

Open Cluster   M-38: Open cluster in Auriga.

Open Cluster   M-39: Open cluster in Cygnus.

Nebula   M-42: Emission nebula (Orion Nebula) in Orion.

Open Cluster   M-45: The Pleiades open cluster in Taurus.

Open Cluster   M-52: Open cluster in Cassiopeia.

Nebula   M-78: Diffuse nebula in Orion.

Galaxy   M-81: Spiral galaxy located very close to another galaxy (M-82) in Ursa Major.

Galaxy   M-82: Irregular galaxy located very close to another galaxy (M-81) in Ursa Major.

Galaxy   M-101: Spiral galaxy (The Pinwheel Galaxy) in Ursa Major.

Open Cluster   M-103: Open cluster in Cassiopeia.

Open Cluster   NGC869 and NGC884: The Double Cluster in Perseus.

Double & Variable Stars

A telescope is usually required to split close double stars. Please consult a star chart for more precise location information.

Double Star  Double Stars: Algol - Variable binary, period about 3 days, distance 105 LY
Aldebaran - The follower, distance 65 LY

Satellites

ISS

Here is a link that will allow you to type in your city (in the U.S.) and get pass prediction information for the International Space Station (ISS). Note that this information is location-specific (in this example, the output for the latitude/longitude of Walled Lake, Michigan), so your mileage (actually timing) for viewing the ISS may vary!

Space Station ISS

Naked-Eye Visibility Data
for Walled Lake, MI U.S.A.
4/17/2002 - 4/25/2002

DATE PICKUP TIME
hrs:min
(Local Time)
DIRECTION
(from/to)
DURATION
(minutes)
MAXIMUM
ELEVATION
ABOVE
HORIZON
(degrees)
18-Apr-2002  9:21 PM  W/S  14 

NOTES: Included are only major cities currently in the range of visibility, with maximum spacecraft elevations over the horizon larger than 10 degrees. The data are also valid for suburban regions around these cities, with slight changes in Direction of Movement and Max. Elevation.

Pickup Time: The local time of day that the spacecraft becomes visible on the horizon.

Direction of Movement: The spacecraft will appear in the first direction and travel across the sky, rising to the "Maximum Elevation" and disappearing at the horizon in the second direction shown. These compass directions are understood to embrace an angular field of 22.5 degrees each, with their symbols defined as follows:

N:  North    NW:  Northwest    NNW:  North-Northwest    SSE:  South-Southeast
E:  East     SW:  Southwest    WNW:  West-Northwest     ESE:  East-Southeast
S:  South    NE:  Northeast    WSW:  West-Southwest     ENE:  East-Northeast
W:  West     SE:  Southeast    SSW:  South-Southwest    NNE:  North-Northeast
Responsible NASA Authority:
Jesco von Puttkamer
Information Source:
Office of Space Flight NOVIS System
Updated: 4/17/2002
State Vector Epoch: 4/17/2002
Curator:
SAIC Information Services

J-Track Satellite Tracking is a nice site that will provide you with information on other satellite passes, such as the Hubble Space Telescope (HST) and Chandra X-Ray Observatory.

Heaven's Above is a site that provides you with all the information you need to observe satellites such as the International Space Station and the Space Shuttle, spectacular events such as the dazzlingly bright flares from Iridium satellites, as well as a wealth of other spaceflight and astronomical information. Not only does the site provide the times of visibility, but also detailed star charts showing the satellite's track through the heavens. All pages, including the graphics, are generated in real-time and customized for your location and time zone.

Meteor Showers

Meteor

This shower calendar has been adapted from the Working List of Visual Meteor Showers published by the International Meteor Organization (IMO).

Details in this Table were correct according to the best information available in June 2006. Contact the IMO's Visual Commission for more information. Maximum dates in parentheses indicate reference dates for the radiant, not true maxima. Some showers have ZHRs that vary from year to year. The most recent reliable figure is given here, except for possibly periodic showers that are noted as “var.” = variable.

Shower Activity Max Dateλα δ vr ZHR
Antihelion Source (ANT) Jan 01 - Dec 31 30 3.0 3
Quadrantids (QUA) Jan 01 - Jan 05Jan 04 283°16 230° +49° 41 2.1 120
α-Centaurids (ACE) Jan 28 - Feb 21Feb 08 319°2 211° -59°56 2.0 5
δ-Leonids (DLE) Feb 15 - Mar 10Feb 25 336° 168° +16° 23 3.0 2
γ-Normids (GNO) Feb 25 - Mar 22Mar 14 353° 239° -50°56 2.4 4
Lyrids (LYR) Apr 16 - Apr 25Apr 22 32°32 271° +34° 49 2.1 18
π-Puppids (PPU) Apr 15 - Apr 28Apr 24 33°5 110° -45°18 2.0 var
η-Aquarids (ETA) Apr 19 - May 28May 06 45°5 338° -01°66 2.4 60
η-Lyrids (ELY) May 03 - May 12May 09 48°4 287° +44 44 3.0 3
June Bootids (JBO) Jun 22 - Jul 02Jun 27 95°7 224° +48° 18 2.2 var
Piscis Austrinids (PAU) Jul 15 - Aug 10Jul 28 125° 341° -30°35 3.2 5
South.δ-Aquarids (SDA) Jul 12 - Aug 19Jul 28 125° 339° -16°41 3.2 20
α-Capricornids (CAP) Jul 03 - Aug 15Jul 30 127° 307° -10°23 2.5 4
Perseids (PER) Jul 17 - Aug 24Aug 13 140°0 46° +58° 59 2.6 100
κ-Cygnids (KCG) Aug 03 - Aug 25Aug 18 145° 286° +59° 25 3.0 3
α-Aurigids (AUR) Aug 25 - Sep 08Sep 01 158°6 84° +42° 66 2.6 7
September Perseids (SPE) Sep 05 - Sep 17Sep 09 166°7 60° +47° 64 2.9 5
δ-Aurigids (DAU) Sep 18 - Oct 10Oct 04 191° 88° +49° 64 2.9 2
Draconids (GIA) Oct 06 - Oct 10Oct 09 195°4 262° +54° 20 2.6 var
ε-Geminids (EGE) Oct 14 - Oct 27Oct 18 205° 102° +27° 70 3.0 2
Orionids (ORI) Oct 02 - Nov 07Oct 21 208° 95° +16° 66 2.5 23
Leo Minorids (LMI) Oct 19 - Oct 27Oct 24 211° 162° +37° 62 3.0 2
Southern Taurids (STA) Oct 01 - Nov 25Nov 05 223° 52° +15° 27 2.3 5
Northern Taurids (NTA) Oct 01 - Nov 25Nov 12 230° 58° +22° 29 2.3 5
Leonids (LEO) Nov 10 - Nov 23Nov 18 235°27 153° +22° 71 2.5 15+
α-Monocerotids (AMO) Nov 15 - Nov 25Nov 22 239°32 117° +01° 65 2.4 var
Dec Phoenicids (PHO) Nov 28 - Dec 09Dec 06 254°25 18° -53°18 2.8 var
Puppid/Velids (PUP) Dec 01 - Dec 15(Dec 07)(255°) 123° -45°40 2.9 10
Monocerotids (MON) Nov 27 - Dec 17Dec 09 257° 100° +08° 42 3.0 2
σ-Hydrids (HYD) Dec 03 - Dec 15Dec 12 260° 127° +02° 58 3.0 3
Geminids (GEM) Dec 07 - Dec 17Dec 14 262°2 112° +33° 35 2.6 120
Coma Berenicids (COM) Dec 12 - Jan 23Dec 20 268° 177° +25° 65 3.0 5
Ursids (URS) Dec 17 - Dec 26Dec 23 270°7 217° +76° 33 3.0 10

Radiant positions are listed in right ascension and declination coordinates. The column "V" is the velocity in kilometers per second. "Code" is the abbreviation for the shower that observers should use when reporting meteor observations. Periodic showers are listed as "var" under the ZHR column.

More information about meteor showers is available from the American Meteor Society.


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Web page last updated: December 23, 2007