PN in the Small Magellanic Cloud (SMC)

- Deutsche Version?

In 1978 the three astronomers Sanduleak, MacConnell and Davis (SMP) published a list of PN in the LMC and SMC (1978PASP...90..621S) - 28 objects within the SMC, 26 of them were listed as PN.

Most of the PN are visible in medium sized telescopes. To identify the PN a UHC filter (filter blink) is very helpful. All PN remain stellar. The brightest object is the PN SMP-SMC 17. The listed fluxes are not very accurate and did not fit with the visual impression.

searching map
(Rudi Dobesberger)

table + data

object (DSS 15'x15' red plate) description
SMP-SMC 1

 

- 4,5' NE of Cl ESO 28-17
- 7,9' NNW of Cl ESO 28-18 (Kron 4)

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- PN can hold steadily with averted vision, without filter

SMP-SMC 2

 

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- could be hold with direct vision
- UHC blinking possible
SMP-SMC 3

 

- 8,9' SE of Cl NGC 152

24" Newton, 300x, NELM 7m+,moon, seeing III, Hakos (Namibia)
- close star group, could not be separate
- strong filter blink, with [OIII] easy to see, stellar pin point with direct vision

SMP-SMC 4

 

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- can be hold with direct vision without filter
- slightly filter effect, difficult to blink with UHC
SMP-SMC 5

 

- 3,7' E of Cl Kron 16
- 6,1' SE of Cl Kron 15
- 8,1' N of Cl Kron 21

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- can be hold with direct vision without filter
- strong filter effect, easy UHC blink

SMP-SMC 6

 

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- can be hold with direct vision without filter
- strong filter effect, easy UHC blink
SMP-SMC 7

 

- 5,8' E of Cl NGC 231
- 7,3' NW of Cl NGC 241

24" Newton, 300x, NELM 7m+, seeing IV, Hakos (Namibia)
- not visible

SMP-SMC 8

 

- 3,5' SE von Cl Lindsay 28

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- can be hold with direct vision without filter
- difficult to blink with UHC

SMP-SMC 9

 

- 1,1' S of Emission Object NGC 248S
- 6,6' NNW of Cl NGC 256
- 8' ENE of Cl NGC 241

24" Newton, 300x, NELM 7m+, seeing III, Hakos (Namibia)
- nothing to see without filter
- with UHC the PN could be detect as a stellar object with similar brightness as the 16mag star 36" NE of the PN, PN could hold with averted vision

SMP-SMC 10

 

- 2,2' NW of Cl Lindsay 33
- 5,1' SSE of Cl Lindsay 31

14,5" Newton, 382x, NELM 7m+, seeing IV, Hakos (Namibia)
- can not hold PN steadily without filter
- with UHC PN can hold steadily with averted vision

SMP-SMC 11

 

- 7,2' NW of Cl Bruck 52

14,5" Newton, 382x, NELM 7m+, seeing III, Hakos (Namibia)
- incorrect position (coordinates) of the PN?
- with UHC filter blink a 16mag stellar object could be detectet 10" NE of the PN position, fits better to the PN brightness (16,3b)
- this object could also be detected without filter and could hold with averted vision
- nothing to see at the exact PN position

SMP-SMC 13

 

- 3,3' WSW of PN SMP-SMC 14

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- bright and easy without filter, direct vision
- easy UHC blinking

SMP-SMC 14

 

- 3,3' ENE of PN SMP-SMC 14

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- nothing to see without filter
- with UHC easy, can hold steadily with averted vision

SMP-SMC 16

 

14,5" Newton, 382x, NELM 7m+, seeing III, Hakos (Namibia)
- difficult to detect with 14,5", without filter difficult to hold
-
slightly filter filter effect, difficult to blink with UHC
SMP-SMC 17

 

- 7,3' W of Cl ESO 51-6 (Lindsay 48)

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- brightest member of the SMP-SMC objects
- bright and easy with 14,5" without filter
- strong and easy filter blink with UHC

SMP-SMC 18

 

- 5,3' WNW of Cl NGC 294

14,5" Newton, 382x, NELM 7m+, seeing III, Hakos (Namibia)
- without filter difficult to hold with averted vision
- with UHC more easy, can hold it easily with averted vision

SMP-SMC 19

 

- 1' NW of Cl Bruck 71

14,5" Newton, 236x-382x, NELM 7m+, seeing III, Hakos (Namibia)
- plobs in and out of view without filter, can not hold PN with averted vision
- slightly UHC reaction, but also visible with difficulties

SMP-SMC 20

 

- 2,5' N of Glx 2MASX J00560071-7021585 (15,6rmag)

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- easy to detect without filter, can hold it steadily with direct vision
- slightly filter reaction, but blinking with UHC is visible

SMP-SMC 21

 

- 1,3' NE of Cl NGC 330

14,5" Newton, 382x, NELM 7m+, seeing III, Hakos (Namibia)
- not visible without filter
- can hold it with averted vision with UHC filter, difficult

SMP-SMC 22

 

14,5" Newton, 382x, NELM 7m+, seeing III, Hakos (Namibia)
- can hold PN without filter with averted vision
- very slightly UHC reaction
SMP-SMC 23

 

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- not visible without filter
- with UHC only suspected
SMP-SMC 24

 

- 8,7' N of Cl/EmN NGC 346

14,5" Newton, 236x, NELM 7m+, seeing III, Hakos (Namibia)
- difficult to hold without filter
- strong UHC reaction, good filter blink, easy to hold with UHC

SMP-SMC 25

 

- 6,7' WSW of EmN DEM S 109

24" Newton, 300x, NELM 7m+, seeing IV, Hakos (Namibia)
- can hold it with averted vision without filter
- negative UHC reaction, object disappear with filter

SMP-SMC 26

 

14,5" Newton, 382x, NELM 7m+, seeing IV, Hakos (Namibia)
- without filter difficult spot of light, can not hold it with averted vision
- no UHC improvement
SMP-SMC 27

 

14,5" Newton, 382x, NELM 7m+, seeing III, Hakos (Namibia)
- close star group, without filter PN is the brightest object
- clear UHC blink - all stars but the PN dissappears
SMP-SMC 28

 

14,5" Newton, 382x, NELM 7m+, seeing III, Hakos (Namibia)
- not visible with and without filter

24" Newton, 300x, NELM 7m+, seeing IV, Hakos (Namibia)
- without filter a faint star group with a brighter PN (direct vision)
- slightly UHC blink, all stars but the PN
dissappears

 

SMP-SMC RA (J2000) DEC (J2000) flux/filter
1 00 23 58.60 -73 38 04.0 14,7j
2 00 32 38.84 -71 41 59.5 16,4b; 15,9r
3 00 34 21.93 -73 13 21.5 17,1b
4 00 40 46.21 -75 16 20.8 /
5 00 41 21.65 -72 45 16.8 14,4b; 15,4r
6 00 41 27.77 -73 47 06.4 16,5b; 15,4r
7 00 42 28.48 -73 20 53.9 17,4v
8 00 43 25.33 -72 38 19.2 16,2v
9 00 45 20.89 -73 24 09.1 17,3v
10 00 46 59.67 -72 49 16.0 16,5v
11 00 48 35.15 -72 58 07.9 16,3b
13 00 49 51.65 -73 44 21.7 16,1b
14 00 50 35.06 -73 42 57.9 16,3v
16 00 51 27.14 -72 26 11.7 16,3b; 16,1r
17 00 51 56.42 -71 24 44.2 16,0b; 15,5r
18 00 51 58.30 -73 20 31.8 16,0v
19 00 53 11.15 -72 45 07.6 16,4v
20 00 56 05.37 -70 19 26.0 16,0b; 15,1r
21 00 56 30.75 -72 27 02.0 17,3; 17,1b
22 00 58 37.12 -71 35 49.8 16,3b; 15,3r
23 00 58 42.34 -72 57 00.0 16,7b
24 00 59 16.09 -72 01 59.8 16,1b
25 00 59 40.52 -71 38 15.1 17,5b
26 01 04 17.94 -73 21 51.3 16,7b
27 01 21 10.69 -73 14 34.8 15,9b
28 01 24 11.88 -74 02 32.3 17,1b

DSS: Space Telescope Science Institute (California Institute of Technology, National Science Foundation, the National Geographic Society, the Sloan Foundation, the Samuel Oschin Foundation, Eastman Kodak Corporation)

 

- Deutsche Version?