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© Ciel Extrême, 1998
 Discoverers of Dreyer's two ICs


NOM
total IC
"Existing" obj.
ratio
JAVELLE
1431
1047
73%
WOLF
1127
234
21%
STEWART
672
360
54%
SWIFT
585
366
63%
FROST
454
250
55%
BIGOURDAN
322
152
47%
SCHWASSMAN
172
63
37%
BARNARD
157
75
48%
HOWE
64
37
58%
SPITALER
63
47
75%
SAFFORD
47
29
62%
FLEMING
39
28
72%
KOBOLD
37
34
92%
ROBERTS
33
22
67%
STONE
29
16
55%
BURNHAM
22
10
45%
ESPIN
21
10
48%
DENNING
18
18
100%
PICKERING
17
10
59%
INNES
13
6
46%
ROSSE IV (Lord)
9
8
89%
KEELER
7
2
29%
LUNT
6
6
100%
BAILEY
5
5
100%
FINLAY
5
2
40%
THOME
5
0
0%
BIDSHOF
2
2
100%
CHESEAUX (DE)
2
2
100%
LACAILLE (DE)
2
2
100%
AITKEN
1
1
100%
AL-SUFI
1
1
100%
BELLAMY
1
1
100%
CODDINGTON
1
1
100%
ENGELHARDT
1
0
0%
GALE
1
0
0%
MARTH
1
0
0%
SCHAEBERLE
1
1
100%

This table ranks the IC discoverers according to the number of their discoveries. The more discoveries they made, the highest in the table they are. More details on the discoverers are to be found on a table below.

Except for some well-known cases, I have adopted the discoverer mentioned in Dreyer's original publication (generously provided by Brent Archinal of USNO). This procedure may produce errors and if you find some, I'll be glad you point them to me for future updates.

I have also assumed that all original IC objects exists (which is surely wrong), and have established a second column where the "existing" findings (according to NGC 2000.0) are counted up, and a third one where a ratio of existing objects on the discoveries' total is given. I am aware (and you should be too) that these two columns are not firmly reliable: I have had no time at present to draw a parallel between the original total and a cleaned up version of the IC, such as the one beeing produced on the NGC/IC web site (see their site for details). Surely enough, when the NGC/IC project will be largely completed (but its a long and tedious task), the comparison should proove more useful and historically true. But this attempt gives an indication of the observers' diligence.

You can reach biographies by clicking on the linked discoverers in the table below (but be prepared to hit the "back" button of your browser if you want to come back to the table).

NOM
prenames
dates
countries
instruments / observing sites
JAVELLE
Stéphane
1864-1917
FRA
Refr-30" / Nice (fra)
WOLF
Maximilian F.J.C.
1863-1932
GER/USA
Refr-16" / Heidelberg (ger)
STEWART
Delisle
? about 1908
USA?
Refr-24" / Arequipa (peru)
SWIFT
Lewis
1820-1913
USA
Refr-16" / Warner obs. (usa)
FROST
R. H.
? about 1900
USA
Refr-24" / Arequipa (peru)
BIGOURDAN
Guillaume
1851-1932
FRA
Refr-12" / Paris (fra)
SCHWASSMAN
?
? about 1905
GER
Refr-6" / Heidelberg (ger)
BARNARD
Edward E.
1857-1923
USA
Refl-12" / Lick (usa)
HOWE
Herbert A.
1858-1926
USA
Refr-20" / Chamberlin obs. (usa)
SPITALER
?
? about 1890
AUT
Refr-27" / Vienna (aut)
SAFFORD
Truman H.
1836-1901
USA
Refr-15" / Harvard (usa)
FLEMING
Wilhelmina P.S.
1857-1911
UK/USA
Spectroscope / Harvard (usa)
KOBOLD
?
?
GER?
Refr-18" / Strasbourg (fra)
ROBERTS
Isaac
1829-1904
UK
Refl-60" / ? (gbr)
STONE
Ormond
1847-1933
USA
Refr-26" / MÕCormick obs. (usa)
BURNHAM
Sherburne W.
1838-1921
USA
Refr-36" / Lick + refr-40" / Yerkes (usa)
ESPIN
Thomas H.E.C
1858-1934
UK
Refl-13" / Oxford (uk)
DENNING
William F.
1848-1931
UK
Refl-10" / ?
PICKERING
Edward C.
1846-1919
USA
Spectroscope / Harvard (usa)
INNES
Robert T. A.
1861-1933
UK/AFS
Refr-7" / Cape (afs)
ROSSE IV (Lord)
Laurence (Parsons)
1840-1908
IRL
Refl-36" + refl-72" / Birr (irl)
KEELER
James E.
1857-1900
USA
Refl-36" / Lick (usa)
LUNT
?
? about 1895
AFS
Refl-18" / Cape (afs)
BAILEY
Solon I.
1854-1931
USA
Refr-15" / Harvard (usa)
FINLAY
?
? about 1880
AFS
Refr-6" + 7" / Cape (afs)
THOME
J. M.
? about 1892
USA?
Refr-24" ? / Arequipa (peru)
BIDSHOF
?
?
?
? / ?
CHESEAUX [Chéseaux] (DE)
Jean P. L.
1718-1751
SWI
? / ?
LA CAILLE (DE)
Nicolas L.
1713-1762
FRA
Refr-1" / Cape (aus)
AITKEN
Robert G.
1864-1951
UK
Refr-36" / Lick (usa)
AL-SUFI
Abd-al-rahman
903-986
persia
Naked eye / Persia
BELLAMY
?
?
?
? / ?
CODDINGTON
?
?
?
? / ?
ENGELHARDT (VON)
B.
? about 1886
GER
? / Dresde (ger)
GALE
Walter F.?
1865-1945?
?
? / ?
MARTH
Albert
1828-1897
GER
Refl-48" / Malta
SCHAEBERLE
?
?
?
? / ?


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