Sky & Telescope - USA (2020-06)

Pinwheel Perfection

16 JUNE 2020 • SKY & TELESCOPE

THE PINWHEEL AND SUR-

ROUNDINGS The chart at right

gives an overview of the area

in space that M101 and its

companions share (see page

43 to read more on Mizar). The

accompanying POSS-II images

show zooms of the central

region of the chart, as well as

of the clusterings of galaxies at

top left, top right, and bottom

right. The arrow in the image at

top right of this page points to

the galaxy that Herschel likely

labeled NGC 5113. Nearby

stars and their magnitudes

(without decimals) are also

labeled.

M

5474

5473

5485 5486

5484

PGC 50395

5585

5631

5678

5422

5475 5443

5204

5109

5113

UGC 8837

5368

5238

5225

5250

h

k

q

z

Mizar

URSA MAJOR

DRACO

BOÖTES

CANES

VENATICI

5477

14 h 40 m 14 h 30 m 14 h 20 m 14 h 10 m 14 h 00 m 13 h 50 m 13 h 40 m 13 h 30 m 13 h 20 m

+58°

+56°

+54°

+52°

+50°

86

3 4 5 6 7 8 9

Star magnitudes

5678

HD 128332
65

HD 12 6968

75

HD 125193

67

HD 117299

79

5631

5585

5204

5109

POSS-II / STSCI / CALTECH / PALOMAR OBSERVATORY (2)