Below are the IUE target class codes with no changes (cf. IUE Observer's Guide, in IUE Newsletter 32, pg. 78, July 1987). Obviously, some of these are not appropriate for FUSE, but many are. Specifying a reasonable code number will make comparisons between the IUE and FUSE archives more straightforward.
00 Sun 50 R, N, or S Type Star 01 Earth 51 Long Period Variables 02 Moon 52 Irregular Variables 03 Planet 53 Regular Variables 04 Planetary Satellite 54 Dwarf Novae 05 Minor Planet 55 Classical Novae 06 Comet 56 Supernovae 07 Sky Background 57 Symbiotic Stars 08 Great Red Spot 58 T Tauri Stars 09 59 X-ray Source 10 WC 60 Shell Star 11 WN 61 Eta Carinae 12 Main Sequence O 62 Pulsar 13 Supergiant O 63 Nova-like 14 Oe 64 Other 15 Of 65 Misidentified Targets 16 O Subdwarf 66 Interacting Binaries 17 WD O 67 18 68 19 Other Strong UV source 69 Herbig-Haro Object 20 B0-B2 IV-V 70 Cent. Star Plan. Neb. 21 B3-B5 IV-V 71 Planetary Nebula 22 B6-B9.5 IV-V 72 H II Region 23 B0-B2 I-III 73 Reflection Nebula 24 B3-B5 I-III 74 Dark Cloud (Absorp. spectrum) 25 B6-B9.5 I-III 75 Supernova Remnant 26 Be 76 Ring Nebula (Shock-ionized) 27 Bp 77 28 B Subdwarf 78 29 WDB 79 30 A0-3 IV-V 80 Spiral Galaxy 31 A4-9 IV-V 81 Elliptical Galaxy 32 A0-3 I-III 82 Irregular Galaxy 33 A4-9 I-III 83 Globular Cluster 34 Ae 84 Seyfert Galaxy 35 Am 85 Quasar 36 Ap 86 Radio Galaxy 37 WDA 87 BL Lac Object 38 Horiz. Branch Stars 88 Emission-line Galaxy (non-Seyfert) 39 Composite Spectra 89 40 F0-2 90 Intergalactic Medium 41 F3-9 91 42 Fp 92 43 Late-type Degenerates 93 44 G IV-V 94 45 G I-III 95 46 K IV-V 96 47 K I-III 97 48 M IV-V 98 49 M I-III 99Last Updated 10/5/06, by B-G Andersson.