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CCD Images - Session 464 (2011-03-23)

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Objects Session Notes
Bullet NGC 2315 - Spiral Galaxy & Supernovae 2011ay
Bullet IC 3862 - Spiral Galaxy with Supernovae 2011az (ARP 265)
Bullet M61 - Spiral Galaxy
Bullet M53 - Globular Cluster
Bullet IC 2973 - Spiral Galaxy & Supernovae 2011ao
Bullet Palomar 3 - Globular Cluster
Bullet NGC 4477 - Spiral Galaxy
Bullet Variable Stars
Bullet Photometric Monitoring - Variables
- RX And, U And, W And, Z And, KR Aur, T Aur, CV CMi, SY Cnc, R CrB, AM CVn, RS CVn, U Gem, AM Her, U Her, SZ Lyn, CZ Ori, FO Ori, FU Ori, DY Per, GK Per,  ER UMa, SU UMa

- Ori NV attempt (aborted)
Bullet Astrometric Monitoring - Nearby Stars
- Ross 248 (HH And), DX Cnc, Groombridge 34, Teegardens Star
- Early evening  session (4.6 hrs),
- Session operated under semi-automated control, with remote monitoring from indoors computer. 
- Ambient Temperature: Initially +7.0 deg C falling steadily to +3.0 deg C  (minimum) by session end.
- CCD operation -25 degC (at 73% average cooling).  
- main objectives of the session was to acquire images of selected project stars for ongoing photometric analysis.

NGC 2315 - Spiral Galaxy & Supernovae 2011ay

NGC 2315 & SN 2011ay (Lynx)

SN 2011ay (Type Ia) was discovered 2011/03/18.180 by Lick Observatory Supernova Search
Magnitude at discovery ~ +16.9
(Rochester Supernova site | Discovery Image | Giancarlo Cortini image | Reference Image )

Image below (2011-03-23.88) was taken 5.7 days after discovery.
Image
Annotated CCD Image (cropped, 100% size)
5 x 90s exposure (average combine), 3x3 binning, C Filter 
2011-01-23 21:01 hUT (#464094-987)
12" LX200R  (at f/9.7) + ST-10XME

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IC 3862 - Spiral Galaxy with Supernovae 2011az (ARP 265)

IC 3862 / ARP 265 with 2011az  (Canes Venatici)
Original designation PSN J12535343+3605193 
SN 2011az (Type IIp) was discovered 2011/03/18.924 by Maurice Gavin
Magnitude at discovery + 16.2,
(Rochester Supernova site | Discovery Image | 2011az Page |  Reference Image )

Image below (2011-03-23.91) was taken 5.0 days after discovery.
Est. Mag of SN is +15.3
PSN (now SN)  is marked by the white cross hair
Image
Annotated CCD Image (cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter 
2011-03-23 21:55 hUT (#464237-41)
12" LX200R  (at f/9.7) + ST-10XME
(same image on supernovae.net)

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M61 - Spiral Galaxy

M61 (Virgo)

Image
CCD Image - Cropped, Linear scaling
3 x 120s sec exposure (average combine), 3x3 binning, C Filter
2 2011-03-07 23:35h UT (#464214-18)
12" LX200R  (at f/9.7) + ST-10XME

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M53 - Globular Cluster

M53 (Coma Berenices)
Image
 CCD Image (35% size)
4 x 45 sec exposure (average combine), 3x3 binning, C Filter 
2011-03-07 23:35h UT (#464257-61)
12" LX200R  (at f/9.7) + ST-10XME
 
M53 - detail
Image
CCD Image (100% size, cropped)
Image details as above
 
Earlier Image of M53 - 2006-12-02
Image
 CCD Image, square root brightness scaling
2 x 60 sec exposure (average combine), 2x2 binning, C Filter 
2006-12-02 06:23h UT (#156075,77)
8" LX200 classic + ST-7e

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IC 2973 - Spiral Galaxy with Supernovae 2011ao

IC 2973 with SN 2011ao (Ursa Major)

SN 2011ao (Type Ia) was discovered 2011/03/03.434 by A. Kroes, Jack Newton, and Tim Puckett
Magnitude at discovery ? +15.3
(Rochester Supernova site | Discovery Image )

Image below (2011-03-23.97) was taken 25 days after discovery.
Est. Mag +13.8
SN 2011ao is marked by white cross hair
Image
Annotated CCD Image (cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter 
2011-03-23 23:11 hUT (#464237-41)
12" LX200R  (at f/9.7) + ST-10XME

Earlier Image of IC 2973 with SN 2011ao - 2011-03-19
 20.2 days after discovery, estimated mag also +13.8
Image
Annotated CCD Image (cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter 
2011-03-19 01:27 hUT (#463088-92)
12" LX200R  (at f/9.7) + ST-10XME

Earlier Image of IC 2973 with SN 2011ao - 2011-03-07
 9 days after discovery.
Image
Annotated CCD Image (cropped)
3 x 90s exposure (average combine), 3x3 binning, C Filter 
2011-03-07 21:31 hUT (#461185-87)
12" LX200R  (at f/9.7) + ST-10XME

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Palomar 3 - Globular Cluster

Palomar 3 (Sextans)

Image
CCD Image (cropped)
4 x 60s exposure (average combine), 3x3 binning, C Filter 
2011-03-23 23:48 hUT (#464268-72)
12" LX200R  (at f/9.7) + ST-10XME

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NGC 4477 - Spiral Galaxy

NGC 4477 / Herschel II-115 (Coma Berenices)
smaller spiral galaxy to bottom left is NGC 4479
Image
CCD Image (50% size)
3 x 90sec exposure (average combine),  3x3 binning, C Filter
2011-03-24 00:28 h UT  (#464312-14)
12" LX200R  (at f/9.7) + ST-10XME

NGC 4477 - detail
Image
CCD Image (100% size, cropped)
Image details as above

NGC 4477 - earlier image
smaller spiral galaxy to bottom left is NGC 4479
image unfortunately affected by wind shake/poor seeing
Image
CCD Image (50% size)
2 x 90sec exposure (average combine),  3x3 binning, C Filter
2011-03-01 23:25 h UT  (#460197-98)
12" LX200R  (at f/9.7) + ST-10XME

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Variable Stars

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This Web Page: CCD Images - Session 464  (2011-03-23)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site