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M101 Galaxy

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Various images of M101 (Spiral Galaxy)

M01 Galaxy
Bullet M31 - Spiral Galaxy (Andromeda Galaxy) - 2.9 mly
 
 
Transients in M101
Bullet Novae in M101
 
Bullet Supernovae in M101
Bullet SN 2011fe - Type Ia Supernova in M101 (2011-08-24)
 
Globular Clusters in M101

M101 Galaxy

M101 - 2023

M101 (Ursa Major)
Image
Annotated CCD Image (70% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-08-13 23:00 UT (#1128015-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
M101 - Detail
Image
False Colour CCD Image (70% size, square root scale)
Inverse Spectrum, Softened (noise reduction)
Image details as above
 
Image
 Negative CCD Image (70% size, log scale)
Image details as above
 
 

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M101 - 2020

M101 (Ursa Major)
Taken under bright moonlit skies using
Optolong L-eNhance dual narrowband filter (Ha, Hb, Oiii)
Moon at 49° Altitude, 98% Phase, 68° Separation from M101
Image
CCD Image (70% size, square root scale)
6 x 180s exposure (average combine), 3x3 binning, DB Filter
2020-01-12 03:09 UT (#740209-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
M101 - Detail
Image
False Colour CCD Image (70% size, square root scale)
Inverse Spectrum, Softened (noise reduction)
Image details as above
 
Image
 CCD Image (70% size, log scale)
Image details as above
 
Image
 Negative CCD Image (70% size, log scale)
Image details as above
 
Image
 CCD Image (70% size, linear scale)
Image details as above
 
M101 - Earlier Image (2009)
Image
CCD Image (75% size, cropped) 
9 x 60 sec (average combine),  3x3 binning, C Filter
2009-08-24 22:00 h UT  (#386001-10)
12" LX200R  (at f/5.7) + ST-10XME
[uncropped]
 
M101 - Earlier Image (Oct 2011)
with Supernova SN 2011fe, 41 days after SN discovery
Est. SN Mag +10.5
 Image
Annotated CCD Image  (58% size, cropped)
11 x 60 sec exposure (average combine),  3x3 binning, C Filter 
2011-10-03 20:28 h UT  (#479003-14)
12" LX200R  (at f/9.7) + ST-10XME
 
M101 - Earlier Image (2004)
 Image
Negative CCD Image Mosaic  (58% size, cropped)
Mosaic (1x2), 3 x 2 min (average combine), C Filter
2004-12-11 07:04 h UT (#79063-68)
8" LX200 Classic + ST-7EE
 
 

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M101 - 2009

M101 (Ursa Major)
Image
CCD Image (75% size, cropped) 
9 x 60 sec (average combine),  3x3 binning, C Filter
2009-08-24 22:00 h UT  (#386001-10)
12" LX200R  (at f/5.7) + ST-10XME
[uncropped]
 
M101 - Earlier Image (Oct 2011)
with Supernova SN 2011fe, 41 days after SN discovery
Est. SN Mag +10.5
 Image
Annotated CCD Image  (58% size, cropped)
11 x 60 sec exposure (average combine),  3x3 binning, C Filter 
2011-10-03 20:28 h UT  (#479003-14)
12" LX200R  (at f/9.7) + ST-10XME
 
M101 - Earlier Image (2004)
 Image
Negative CCD Image Mosaic  (58% size, cropped)
Mosaic (1x2), 3 x 2 min (average combine), C Filter
2004-12-11 07:04 h UT (#79063-68)
8" LX200 Classic + ST-7EE
 
 

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H II regions in M101

Novae in M101

Supernovae in M101

SN 2011fe - Type Ia Supernova in M101 (2011-08-24)

M101 with supernova 2011fe  (Ursa Major)
SN 2011fe (= PTF11kly) (Type Ia) was discovered 
2011/08/24.00 by Palomar Transient Factory
Magnitude at discovery +17.2
(Rochester Supernova site | Discovery Image )

 SN 2011fe is reported as being the 
nearest Type 1a supernova 
seen in decades
Image M101 with SN 2011fe (+41d)
2011-10-03.85
41 days after SN discovery
SN Est. Mag 
+10.5

Annotated CCD Image 
(58% size, cropped)
11 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-10-03 20:28 h UT  (#479003-14)
12" LX200R  (at f/9.7) + ST-10XME

 
SN 2011fe Light Curve
Image
Image M101 Earlier Image 
(pre-discovery of SN 2011fe)
2009

CCD Image 
(cropped) 
9 x 60 sec (average combine),  
3x3 binning, C Filter
2009-08-24 22:00 h UT  (#386001-10)
12" LX200R  (at f/5.7) + ST-10XME
 
Images of M101 with supernova 2011fe
Image M101 with SN 2011fe (+1.9d)
2011-08-25.91
~ 1.9 days after SN discovery
SN Est. Mag 
+13.4

Annotated CCD Image 
(58% size, cropped)
9 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-08-25 21:41 h UT  (#477019-28)
12" LX200R  (at f/9.7) + ST-10XME
Image M101 with SN 2011fe (+37d)
2011-09-29.88
37 days after SN discovery
SN Est. Mag 
~ +11.1

Annotated CCD Image 
(58% size, cropped)
4 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-09-29 21:04 h UT  (#478008-11)
12" LX200R  (at f/9.7) + ST-10XME
Note : Poor sky transparency 
+ frost on edges of CCD

 
Image M101 with SN 2011fe (+41d)
2011-10-03.85
41 days after SN discovery
SN Est. Mag 
+10.5

Annotated CCD Image 
(58% size, cropped)
11 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-10-03 20:28 h UT  (#479003-14)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+54d)
2011-10-16.83
54 days after SN discovery
SN Est. Mag 
+11.2

Annotated CCD Image 
(58% size, cropped)
7 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-10-16 20:00 h UT  (#480169-78)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe  (+65d)
2011-10-27.85
65 days after SN discovery
SN Est. Mag 
+11.7

Annotated CCD Image 
(58% size, cropped)
12 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-10-27 20:20 h UT  (#481008-19)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+70d)
2011-11-01.85
70 days after SN discovery
SN Est. Mag 
+11.9

Annotated CCD Image 
(58% size, cropped)
12 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-11-01 19:13 h UT  (#482011-22)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+75d)
2011-11-06.90
75 days after SN discovery
SN Est. Mag 
+12.1

Annotated CCD Image 
(58% size, cropped)
10 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-11-06 21:32 h UT  (#483004-14)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+90d)
2011-11-21.84
90 days after SN discovery
SN Est. Mag 
+12.5

Annotated CCD Image 
(58% size, cropped)
11 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-11-21 20:10 h UT  (#486016-26)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+96d)
2011-11-27.84
96 days after SN discovery
SN Est. Mag 
+12.6

Annotated CCD Image 
(58% size, cropped)
8 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-11-27 20:11 h UT  (#488012-20)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+114d)
2011-12-15.78
114 days after SN discovery
SN Est. Mag 
+13.1

Annotated CCD Image 
(58% size, cropped)
8 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2011-12-15 18:43 h UT  (#490110-19)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+131d)
2012-01-01
131 days after SN discovery
SN Est. Mag 
+13.4

Annotated CCD Image 
(58% size, cropped)
6 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2012-01-01 23:46 h UT  (#494143-51)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+146d)
2012-01-16
146 days after SN discovery
SN Est. Mag 
+13.8

Annotated CCD Image 
(58% size, cropped)
9 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2012-01-16 20:38 h UT  (#497140-48)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+157d)
2012-01-28
157 days after SN discovery
SN Est. Mag 
+14.0

Annotated CCD Image 
(58% size, cropped)
7 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2012-01-28 00:28 h UT  (#499122-31)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+164d)
2012-02-03
164 days after SN discovery
SN Est. Mag 
+14.1

Annotated CCD Image 
(58% size, cropped)
8 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2012-02-03 22:55 h UT  (#500113-20)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+216d)
2012-03-26
216 days after SN discovery
SN Est. Mag 
+15.0

Annotated CCD Image 
(58% size, cropped)
11 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2012-03-26 22:42 h UT  (#507066-74)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+238d)
2012-03-26
238 days after SN discovery
SN Est. Mag 
+15.3

Annotated CCD Image 
(58% size, cropped)
10 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2012-04-17 22:41 h UT  (#510084-93)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+249d)
2012-04-28
249 days after SN discovery
SN Est. Mag 
+15.4

Annotated CCD Image 
(58% size, cropped)
10 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2012-04-28 22:12 h UT  (#511114-23)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe (+346d)
2012-08-03
346 days after SN discovery
SN Est. Mag 
+16.5

Annotated CCD Image 
(58% size, cropped)
5 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2012-08-03 22:26 h UT  (#512215-19)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe  (+414d)
2012-10-10
414 days after SN discovery
SN Est. Mag 
 not visible, > 17.2

Annotated CCD Image 
(58% size, cropped)
7 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2012-10-10 21:24 h UT  (#514050-58)
12" LX200R  (at f/9.7) + ST-10XME

 
Image M101 with SN 2011fe  (+419d)
2012-10-15
419 days after SN discovery
SN Est. Mag 
 only just visible, ~ 17.2

Annotated CCD Image 
(58% size, cropped)
10 x 60 sec exposure (average combine), 
3x3 binning, C Filter 
2012-10-15 19:49 h UT  (#515124-33)
12" LX200R  (at f/9.7) + ST-10XME

 

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Globular Clusters in M101

This Web Page: M31 Galaxy
Last Updated : 2023-08-15
Site Owner : David Richards
Home Page : David's Astronomy Web Site