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BRIGHT GRAZING OCCULTATIONS:
NEW ZEALAND - SEPTEMBER to DECEMBER 2005

Bright Grazes for NZ Sep to Dec 2005

Chart prepared using data from David Herald's Win-Occult and using a program written by Pauline Loader.

Note:
'S' at the end of a track indicates interference from the Sun
'A' indicates that the star is at low altitude
Table of grazes.

EXPLANATION OF THE TABLE
Date :
Universal Time (UT). UT is effectively equivalent to Greenwich Mean Time. In New Zealand, add 12 hours to UT to get NZ Standard Time, or add 13 hours to get NZ Daylight Time.
Star :
ZC indicates the star number in Robertson's Zodiacal Catalog.
S indicates the star number in the SAO Catalog.
A link is provided to information on double stars.
Mag :
Star Magnitude.
%Snlt :
Percent sunlit of the moon. "+" is waxing (before Full Moon) and "-" waning. Before Full Moon the star will appear to approach the moon from its dark side. After Full Moon the star appears to approach across the lighted lunar limb.
Near Place ... :
Lists some cities or towns close to the path, but not usually on it. Click on them to bring up IOTA predictions and a profile for this graze. Once downloaded and saved, you should view the file with a non-proportional font (e.g. Courier 10 point) to preserve the formatting if saved as a text file.
Time :
Approximate hour and minute of graze (Universal Time). For sites to the west times may be a minute or so earlier whilst to the east they may be a little later. Events may occur for a minute or two either side of the predicted time.
Alt :
Altitude of the star and Moon.
CA & Limit :
The Limit indicates whether the star grazes the Northern or Southern edge of the Moon. The associated figure shows the number of degrees round the circumference of the Moon from the bright cusp at which mid graze occurs. The centres of all grazes given above are on the unlit portion of the limb unless otherwise indicated.
Notes :
This gives further information about the graze and star. Most grazes should be observable with a telescope aperture of 100mm. If a larger aperture is likely to be needed this is indicated.
If the grazing star is a double, a link is provided to a table showing: the magnitudes of the components, the separation in seconds of arc, and the Position Angle of the secondary component from the primary.

If you need help consult the following:

[Planning A Graze] [Observing A Graze] [Graze Report Form]


Date UT ZC Mag %Snlt Near Place Time Alt CA Notes
Sep 12 2617 4.6 60+ Hamilton 11:14 37° 7.9° S Double star
Sep 22 538 5.7 75- Auckland 16:32 28° 8.2° NDouble star
Oct 7 2257 6.7 15+ Nelson
Palmerston N
Napier
09:20
09:21
09:21
14°
12°
10°
7.7° S
7.9° S
8.0° S
 
Oct 8 2404 6.7 24+ Alexandra
Timaru
08:02
08:05
42°
40°
6.1° S
6.4° S
Sun ca -12°
Oct 10 2727 7.4 44+ Blenheim
Wellington
07:27
07:29
67°
67°
7.3° S
7.5° S
Sun ca -10°.  150 mm aperture needed
Nov 12 35 6.2 85+ Dunedin
Christchurch
Ward (Blenheim)
Wellington
Palmerson N
Napier
Gisborne
11:37
11:43
11:47
11:49
11:52
11:55
11:58
35°
35°
35°
34°
34°
33°
33°
14.1° S
14.0° S
13.9° S
13.8° S
13.7° S
13.5° S
13.3° S
 
Dec 15 810 1.6 100+ Gore 14:43 10° 76.2° S β Tau, Double star
Dec 18 1233 5.7 92- Auckland 12:32 20° 9.7° S ψ Cnc. 150mm ap. needed?, Double star

(Graze Data produced by the International Occultation Timing Association).

Double Star Data

ZC 2617Sep 12Magnitudes 5.1 + 5.9 Separation 0.26" PA 12°
ZC 538Sep 22Magnitudes 6.4 + 6.4 Separation 0.050" PA 0°
ZC 810Dec 15Magnitudes 2.6 + 2.6 Separation 0.100" PA 270°
ZC 1233Dec 18Magnitudes 6.6 + 6.6 Separation 0.050" PA 270°


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