David's Astronomy - Images 2012-11-10 (S00524)

Objects Session Notes

C/2012 K5 (LINEAR) - Comet

168P/Hergenrother - Comet

C/2012 S1 (ISON) - Comet

Variable Stars

Photometric Monitoring - Variables

- RX And, Z And, TT Ari, CI Cyg, SS Cyg, BL Lac, TZ Lyr
Attempts: U And failed (wind), CY Lyr failed (wind/poor sky), GK Per failed (Cloud)

Astrometric Monitoring - Nearby Stars

- Ross 248 (HH And), 6Groombridge 34, Teegardens Star

Attempts: 61 Cyg failed (poor sky),

- Evening session (2.9 hrs duration).
Mixed conditions, wind affecting some images , cloud affecting others.

- Session operated under semi-automated control, with remote monitoring from indoors computer.
(Power-Line networking)

- Ambient Temperature: Initially falling to +2.5 deg C (minimum) , before climbing to +6.0 degC as warm front approached, and cloud developed with light rain starting falling at end of session.

- CCD operation -30 degC (at 70% average cooling).

- main objectives of the session were to acquire images of selected project stars for ongoing photometric and astrometric analysis, and to image a number of deep sky objects

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Comet C/2012 K5 (LINEAR)

C/2012 K5 (LINEAR) (moving through starfield in Bootes)

Annotated CCD Image (50% size) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2012-11-02 19:10 hUT (#520037-41) 12" LX200R (at f/9.7) + ST-10XME		False Colour CCD Image / Inverse Spectrum (100% size, square root scaling, cropped) Image details as left

C/2012 K5 (LINEAR) - earlier image (2012-11-02) (moving through starfield in Bootes)

Annotated CCD Image (50% size) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2012-11-02 19:10 hUT (#520037-41) 12" LX200R (at f/9.7) + ST-10XME		False Colour CCD Image / Inverse Spectrum (100% size, square root scaling, cropped) Image details as left

C/2012 K5 (LINEAR) - earlier image (2012-11-01) (moving through starfield in Bootes)

Annotated CCD Image (50% size) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2012-11-01 20:12 hUT (#519018-22) 12" LX200R (at f/9.7) + ST-10XME		False Colour CCD Image / Inverse Spectrum (100% size, square root scaling, cropped) Image details as left

C/2012 K5 (LINEAR) - earlier image (2012-10-21) (moving through starfield in Bootes)

Annotated CCD Image (50% size) 5 x 90s exposure (average combine), 3x3 binning, C Filter 2012-10-21 22:40 hUT (#517085-89) 12" LX200R (at f/9.7) + ST-10XME		False Colour CCD Image / Inverse Spectrum (100% size, square root scaling, cropped) Image details as left

Comet 168P/Hergenrother

168P/Hergenrother (moving through starfield in Andromeda)

CCD Image (50% size) 6 x 15s exposure (average combine), 3x3 binning, C Filter 2012-11-08 20:22 hUT (#523108-15) 12" LX200R (at f/9.7) + ST-10XME		False Colour CCD Image / Inverse Spectrum (100% size, square root scaling, cropped) Image details as left

168P/Hergenrother - earlier image (2012-11-04) (moving through starfield in Andromeda)

CCD Image (50% size) 9 x 15s exposure (average combine), 3x3 binning, C Filter 2012-11-04 20:27 hUT (#521058-66) 12" LX200R (at f/9.7) + ST-10XME		False Colour CCD Image / Inverse Spectrum (100% size, square root scaling, cropped) Image details as left

168P/Hergenrother - earlier image (2012-11-02) (moving through starfield in Andromeda)

CCD Image (50% size) 7 x 15s exposure (average combine), 3x3 binning, C Filter 2012-11-02 19:16 hUT (#520044-50) 12" LX200R (at f/9.7) + ST-10XME		False Colour CCD Image / Inverse Spectrum (100% size, square root scaling, cropped) Image details as left

168P/Hergenrother - earlier image (2012-11-01) (moving through starfield in Andromeda)

CCD Image (50% size) 6 x 15s exposure (average combine), 3x3 binning, C Filter 2012-11-01 20:19 hUT (#519025-32) 12" LX200R (at f/9.7) + ST-10XME		False Colour CCD Image / Inverse Spectrum (100% size, square root scaling, cropped) Image details as left

168P/Hergenrother - earlier image (2012-10-29) (moving through starfield in Andromeda)

CCD Image (50% size) 6 x 15s exposure (average combine), 3x3 binning, C Filter 2012-10-29 19:19 hUT (#518017-28) 12" LX200R (at f/9.7) + ST-10XME		False Colour CCD Image / Inverse Spectrum (100% size, square root scaling, cropped) Image details as left

Animation showing motion of comet 168P/Hergenrother over a 5 hour period (moving through starfield in Andromeda)

CCD Image (cropped) 7 x 30s (average combine), 3x3 binning, C Filter Frame 1: 2012-11-02 19:16 hUT (#520044-50) Frame 2: 2012-11-03 00:32 hUT (#520503-09) 12" LX200R (at f/9.7) + ST-10XME

C/2012 S1 (ISON) - Comet

C/2012 S1 (ISON) (moving very slowly through starfield in Cancer) 5.79 AU distance from sun / beyond the orbit of Jupiter Forecast mag +17.3

CCD Image Animation (2 frames separated by 46 min) rate of motion across field ~7 arc secs per hour

CCD Image Animation 3x3 binning, C Filter, cropped 1) 2012-11-11 04:17 hUT (#524411-12), 2 x 180s (average combine) 2) 2012-11-11 05:03 hUT (#524422-23), 2 x 180s (average combine) 12" LX200R (at f/9.7) + ST-10XME

C/2012 S1 (ISON) - 2012-11-02 Comet is highlighted by white cross-hairs		C/2012 S1 (ISON) - Detailed View Measured mag +17.1 (vs forecast mag of +17.3)

Annotated CCD Image (50% size) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2012-11-11 04:22 hUT (#524411-15) 12" LX200R (at f/9.7) + ST-10XME		Annotated CCD Image (100% size, cropped) Image details as left

C/2012 S1 (ISON) - 2012-11-02		DSS2 Image of same area Note: the absence of any star or galaxy at position of comet


Annotated CCD Image Image details as above		Second Digital Sky Survey Image (negative) Equivalent area to image to left

C/2012 S1 (ISON) - 2012-11-11 Comet is highlighted by white cross-hairs		Same area taken 4 days later - 2012-11-15 Former position of comet is highlighted by white cross-hairs

Annotated CCD Image (100% size, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2012-11-11 04:22 hUT (#524411-15) 12" LX200R (at f/9.7) + ST-10XME		Annotated CCD Image (100% size, cropped) 4 x 120s exposure (average combine), 3x3 binning, C Filter 2012-11-15 01:53 hUT (#525207-10) 12" LX200R (at f/9.7) + ST-10XME


Diagrams illustrating the position of C/2012 S1 (ISON) at 2012-11-11, relative to Jupiter & Earth (plots made using TheSky) Closest approach to Sun will occur in Nov/Dec 2013. From Scotland, we should have some really good view of the comets, both as it approaches in the solar system and as it recedes again.
2012-11-11 (04:00): just visible with CCD camera in Cancer (forecast mag +17.3) 2012-12-12 (night): comet moves into Gemini (forecast mag +16.7). and stay there for most of spring-summer 2013 (comet will not be visible during Jun - mid-Sept period due to daylight) 2013-08-01 : comet moves back into Cancer (forecast mag +13.1) 2013-09-02 (06:00): about 2.5 deg from M44 (Beehive Cluster) in Cancer (forecast mag +11.7) 2013-09-20 (06:00) : passes around 2 deg from Mars, then tracks semi parallel to Mars for ~ 1 month. 2013-10-17 (06:00) : passes within 1 deg of Mars in Leo (forecast mag +8.3) 2013-10-30 (06:00) : photo opportunity with Mars and Moon (20% phase, 6 deg away). (forecast mag +6.7) 2013-11-14 (06:00) : passing about 1 deg away Caldwell 52 in Virgo (forecast mag +3.9) 2013-11-23 (06:00) : comet (forecast mag +1.4) will lie in the SE sky just before sunrise, about 5 deg west of the planet Mercury. 2013-12-01 (08:00) : comet very low in the SE sky (5-8 deg above horizon) just before sun rise (forecast magnitude -2). It will gradually climb higher in the sky passing by the Earth on its way out from the Sun. and with pass through Serpens Caput, Hercules, Corona Borealis, 2013-12-25 (08:00) : in Hercules (forecast mag +4.0) 2014-01-07 (12:00) : comet will lie within 3 deg of Polaris in Ursa Minor (forecast mag +5.6)

This Web Page:	CCD Images - Session 524 (2012-11-10)
Last Updated :	2015-05-16

David's Astronomy Pages CCD Images - Session 524 (2012-11-10)

Comet C/2012 K5 (LINEAR)

Comet 168P/Hergenrother

C/2012 S1 (ISON) - Comet

Variable Stars

David's Astronomy Pages
CCD Images - Session 524 (2012-11-10)