Uncataloged HII regions
Objects in this list were first detected in H-alpha images. It turned out that many of these objects also emit in other emission lines.Click the link in the first column to query for images on this site. A detailed description of the table and catalog can be found on the catalog's main page.
| Query link | ID | RA in h m s | DEC in ° ′ ″ | GLON in ° | GLAT in ° | Major diameter in ′ | Minor diameter in ′ | Angle in ° | Old ID | Publication date | Comment |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Images | H010.5 | 16 12 48.2 | -1 44 44 | 10.4795 | +33.6314 | 13.90 | 2024-10-26 | ||||
| (HD 145774) | 16 12 45.7 | -1 43 19 | 10.4958 | +33.6534 | 2024-10-26 | Possible ionization source of H010.5. Distance according to Gaia EDR3: about 760 pc. | |||||
| Images | H024.2 | 18 59 43.8 | -10 49 22 | 24.1913 | -6.7330 | 18.33 | D7 | 2022-10-22 | |||
| Images | H029.3 | 18 43 07.8 | -3 01 15 | 29.2967 | +0.4685 | 67.93 | D5 | 2022-10-22 | HII filament | ||
| Images | H029.8 | 18 37 44.4 | -1 45 30 | 29.8034 | +2.2436 | 19.21 | 10.07 | 96 | D3 | 2022-10-22 | |
| Images | H032.5 | 16 35 46.1 | +15 34 47 | 32.4978 | +36.9295 | 19.43 | 10.43 | 85 | 2024-10-27 | ||
| Images | H032.9 | 18 34 17.0 | +2 12 05 | 32.9385 | +4.8197 | 10.15 | 2024-10-24 | Also visible in [OIII] | |||
| Images | H035.0 | 15 20 22.2 | +23 22 00 | 34.9644 | +56.2353 | 69.38 | 31.31 | 72 | 2024-10-27 | Very faint HII region | |
| Images | H043.1 | 19 05 08.7 | +9 38 06 | 43.0617 | +1.3679 | 5.230 | 2024-10-27 | ||||
| (HD 177624) | 19 05 08.5 | +9 38 32 | 43.0678 | +1.3717 | Possible ionization source of H043.1. Distance according according to Gaia EDR3: 670 pc | ||||||
| Images | H046.5 | 19 17 25.8 | +11 55 17 | 46.4844 | -0.2496 | 5.742 | 2024-10-26 | Possibly ionized by 2MASS J19172053+1154438 or 2MASS J19172239+1155353 | |||
| (2MASS J19172053+1154438) | 19 17 20.5 | +11 54 44 | 46.4663 | -0.2348 | Possible ionization source of H046.5. Distance according to Gaia DR3: about 640 pc | ||||||
| (2MASS J19172239+1155353) | 19 17 22.4 | +11 55 35 | 46.4825 | -0.2348 | Possible ionization source of H046.5. No usable distance measurement | ||||||
| Images | H047.1-2.6 | 19 27 10.9 | +11 23 12 | 47.1374 | -2.6078 | 20.97 | 2024-10-26 | Also visible in [OIII]. Possibly ionized by white dwarf PSO J291.7722+11.4146: PN candidate. | |||
| (PSO J291.7722+11.4146) | 19 27 05.3 | +11 24 53 | 47.1511 | -2.5743 | White dwarf. Possible ionization source of H047.1-2.6. Distance according to Gaia EDR3: about 200pc | ||||||
| Images | H047.1-2.1 | 19 25 09.8 | +11 33 57 | 47.0605 | -2.0875 | 2.466 | 2024-10-26 | ||||
| Images | H047.2 | 19 44 26.4 | +9 07 15 | 47.1924 | -7.4194 | 7.339 | 2024-10-26 | Also very faint [OIII] emissions | |||
| Images | H048.6 | 19 46 08.0 | +10 30 01 | 48.6116 | -7.1096 | 27.43 | E6 | 2023-11-23 | Bibcode: 2023RNAAS...7..274Z. Also visible in [OIII]. | ||
| Images | H056.5 | 20 19 22.7 | +14 39 47 | 56.4516 | -11.9409 | 34.06 | 2024-10-27 | ||||
| Images | H057.9 | 20 15 09.7 | +17 00 40 | 57.9142 | -9.8244 | 11.73 | 2024-10-27 | Also faint [OIII] emissions | |||
| Images | H062.9 | 19 46 44.4 | +26 50 19 | 62.8727 | +0.9224 | 5.950 | G1 | 2022-11-30 | |||
| Images | H063.8 | 19 50 18.1 | +27 28 20 | 63.8200 | +0.5594 | 8.751 | 3.891 | 32 | G2 | 2022-11-30 | |
| Images | H065.0 | 20 17 16.5 | +25 02 14 | 64.9753 | -5.8556 | 5.089 | 2024-10-27 | Possible ionization source: Hot subdwarf candidate Gaia DR2 1832251332171696256: PN candidate | |||
| (Gaia DR2 18..71696256) | 20 17 17.2 | +25 02 32 | 64.9808 | -5.8550 | Gaia DR2 1832251332171696256: Hot subdwarf candidate which could be the ionization source of H065.0. Distance according to Gaia EDR3: about 1700 pc | ||||||
| Images | H066.0 | 22 25 12.3 | +1 23 27 | 66.0037 | -44.7170 | 299.9 | 215.1 | 154 | 2024-10-21 | Probably already known | |
| (pi. Aqr) | 22 25 16.6 | +1 22 39 | 66.0068 | -44.7395 | Possible ionization source. Distance according to Gaia EDR3: about 340 pc. | ||||||
| Images | H079.9 | 22 24 15.1 | +17 11 45 | 79.8537 | -33.0937 | 32.48 | 23.19 | 103 | 2024-10-24 | Faint HII region with a 180° arc. | |
| Images | H083.1 | 22 19 51.5 | +22 58 56 | 83.1350 | -27.9395 | 259.3 | 111.7 | 51 | 2024-10-24 | Incomplete arc | |
| Images | H088.8 | 18 37 33.1 | +59 18 53 | 88.7939 | +24.8120 | 12.35 | 2024-10-25 | Faint HII region that may be ionized by hot subdwarf HS 1837+5913: PN candidate | |||
| (HS 1837+5913) | 18 37 46.5 | +59 15 59 | 88.7482 | +24.7741 | 2024-10-25 | Possible ionization source of H088.8. Distance according to Gaia EDR3: about 1260 pc | |||||
| Images | H106.4 | 23 07 07.2 | +50 11 18 | 106.3600 | -9.2966 | 40.26 | 3.608 | 125 | 2024-10-25 | Faint bipolar jets with a true length of about 19 ly ejected from interacting binary KX And. The jets appear to be surrounded by an elongated bubble. | |
| (H106.4a) | 23 07 38.8 | +50 08 54 | 106.4224 | -9.3668 | 7.364 | 5.133 | 5 | Diffuse structure which is probably related to the jet | |||
| (KX And) | 23 07 06.2 | +50 11 33 | 106.3592 | -9.2919 | Interacting binary, source of the jets and probably of their ionization source. Spectral class: B3pe+K1III. Distance according to Gaia DR3: about 760 pc. | ||||||
| Images | H107.9 | 22 55 44.7 | +57 35 45 | 107.9027 | -1.8604 | 13.46 | I4 | 2023-02-05 | |||
| (BD+56 2903) | 22 55 45.8 | +57 36 07 | 107.9075 | -1.8559 | Possible ionization source of H107.9. Distance according to Gaia EDR3: about 2500 pc. | ||||||
| Images | H110.3 | 23 32 21.3 | +50 33 56 | 110.3157 | -10.3589 | 9.847 | I7 | 2023-02-05 | Faint HII region | ||
| Images | H116.2 | 23 57 44.1 | +59 43 17 | 116.2027 | -2.4470 | 16.88 | I2 | 2023-02-05 | Partially obscured by LDN 1257 and LDN 1258. | ||
| (BD +58 2676) | 23 57 47.7 | +59 43 12 | 116.2099 | -2.4497 | Possible ionization source of H116.2. Distance according to Gaia EDR3: about 2900 pc. | ||||||
| Images | H117.7 | 0 13 54.5 | +56 19 15 | 117.7148 | -6.1703 | 28.13 | 20.20 | 79 | I10 | 2023-02-05 | |
| Images | H118.8 | 20 10 36.1 | +86 05 15 | 118.8444 | +25.7445 | 34.01 | 19.83 | 72 | 2024-10-24 | Also visible in [OIII]. SIMBAD lists 2 white dwarfs and 4 white dwarf candidates in that region. | |
| Images | H119.1 | 0 20 30.1 | +60 17 55 | 119.1054 | -2.3430 | 18.82 | I3 | 2023-02-05 | |||
| (HD 236382) | 0 20 30.1 | +60 17 08 | 119.1038 | -2.3561 | Possible ionization source of H119.1. Distance according to Gaia EDR3: about 1400 pc. | ||||||
| Images | H120.1 | 21 08 55.0 | +86 54 32 | 120.1088 | +25.3552 | 7.604 | 3.307 | 161 | 2024-10-24 | Also visible in [OIII]. White dwarf GALEX J211400.2+865208 approximately in the center of [OIII] emissions: PN candidate. | |
| (GALEX J211400.2+865208) | 21 13 59.9 | +86 52 07 | 120.1180 | +25.2758 | Possible progenitor oh H120.1. Distance according to Gaia DR3: about 320pc | ||||||
| Images | H122.4 | 14 55 00.6 | +89 06 37 | 122.4150 | +27.8909 | 121.4 | 64.78 | 142 | 2024-10-24 | Looks like a disk with a tail | |
| (H122.4a) | 15 57 29.1 | +88 33 44 | 121.7494 | +28.1127 | 44.24 | 2024-10-24 | The disk. Also very faint [OIII] emissions. | ||||
| Images | H124.5 | 2 44 48.8 | +87 04 35 | 124.4573 | +24.5471 | 4.222 | 2024-10-24 | There is the white dwarf GALEX J024259.7+870437, but no [OIII] emissions. | |||
| (GALEX J024259.7+870437) | 2 42 59.8 | +87 04 38 | 124.4344 | +24.5370 | Possible (but unlikely) ionization source of H124.5. Distance according to Gaia EDR3: about 340 pc | ||||||
| Images | H125.0 | 1 10 14.9 | +63 41 31 | 125.0144 | +0.8963 | 8.957 | I15 | 2023-02-05 | |||
| Images | H125.1 | 1 11 29.4 | +64 27 39 | 125.0919 | +1.6732 | 11.34 | I12 | 2023-02-05 | |||
| Images | H125.5 | 1 16 07.0 | +64 52 29 | 125.5492 | +2.1285 | 2.417 | I14 | 2023-02-05 | Small HII region. | ||
| Images | H126.9 | 0 56 13.3 | -10 01 36 | 126.9318 | -72.8613 | 275.0 | 188.2 | 56 | 2024-10-26 | Very faint but large object | |
| Images | H130.9 | 12 11 52.4 | +62 04 07 | 130.8855 | +54.4446 | 57.83 | 9.062 | 71 | 2024-10-24 | Single high latitude filament | |
| Images | H131.0 | 1 12 07.1 | +11 20 09 | 131.0395 | -51.2102 | 14.98 | 10.00 | 67 | 2024-10-24 | PN candidate which may be ionized by white dwarf EGGR 901. Also faint [OIII] emissions around this star. | |
| (EGGR 901) | 1 12 23.1 | +11 23 36 | 131.1311 | -51.1446 | Possible ionization source of H131.0. Distance according to Gaia EDR3: about 250 pc. | ||||||
| Images | H134.2 | 5 17 31.8 | +78 39 07 | 134.1698 | +22.1668 | 145.7 | 2024-10-24 | Large faint fragments which probably belong together | |||
| Images | H139.2 | 2 51 07.7 | +55 56 59 | 139.1750 | -3.1009 | 50.80 | J5 | 2023-12-04 | Probably overseen due to bright star eta Per. | ||
| (LS I +55 39) | 2 50 33.7 | +55 53 44 | 139.1279 | -3.1845 | Possible ionization source of H139.2. Distance according to Gaia DR3: about 3400 pc. | ||||||
| (LS I +55 40) | 2 50 35.1 | +56 04 48 | 139.0491 | -3.0178 | Possible ionization source of H139.2. No distance measurement. | ||||||
| Images | H143.5 | 9 27 30.4 | +69 20 45 | 143.4693 | +38.6313 | 74.30 | 51.94 | 41 | 2024-10-24 | Bright nebula hidden in MW3. Also visible in [OIII] and [SII]. SIMBAD reports 1 white dwarf and 3 white dwarf candidates in that region. | |
| (MW3) | 9 22 45.3 | +71 24 18 | 141.3950 | +37.3178 | 380.0 | 310.6 | 109 | 2024-10-24 | Integrated flux nebula MW3 | ||
| Images | H148.5 | 4 08 36.2 | +55 16 02 | 148.5462 | +2.5230 | 74.55 | J6 | 2023-12-04 | HII region, mostly hidden behind dark nebula. | ||
| Images | H154.6 | 4 27 55.7 | +49 40 20 | 154.5600 | +0.5773 | 8.640 | J1 | 2023-12-04 | |||
| (EM GGA 291) | 4 28 00.1 | +49 39 26 | 154.5790 | +0.5755 | Possible ionization source of H154.6. Distance according to Gaia DR3: about 2900 pc | ||||||
| Images | H154.7 | 4 34 16.6 | +50 28 50 | 154.6690 | +1.8730 | 81.84 | J7 | 2023-12-04 | Mostly hidden behind dark nebula. | ||
| Images | H155.4 | 4 28 36.1 | +48 34 26 | 155.4291 | -0.1033 | 38.95 | H5 | 2022-12-01 | |||
| Images | H155.8 | 2 28 20.0 | +13 53 55 | 155.7566 | -42.7134 | 9.589 | 2024-10-26 | ||||
| Images | H162.3 | 4 45 11.3 | +41 56 51 | 162.2988 | -2.3885 | 16.56 | C6 | 2022-10-19 | May be ionizes by LS V +41 14 which also illuminates reflection nebula GN 04.41.8 | ||
| (LS V +41 14) | 4 45 21.5 | +41 58 44 | 162.2955 | -2.3440 | Possible ionization source of H162.3. Distance according to Gaia EDR3: about 5000pc | ||||||
| (GN 04.41.8) | 4 45 20.2 | +41 58 48 | 162.2922 | -2.3464 | 4.224 | Reflection nebula around LS V +41 14 | |||||
| Images | H164.1 | 5 03 15.8 | +42 22 20 | 164.0815 | +0.4789 | 17.79 | C5 | 2022-10-19 | |||
| Images | H164.4 | 6 10 04.7 | +49 10 25 | 164.4317 | +13.9224 | 263.3 | 2024-10-24 | ||||
| Images | H165.6 | 4 59 36.8 | +39 54 13 | 165.6090 | -1.5786 | 20.81 | C4 | 2022-10-19 | |||
| Images | H167.1 | 5 59 23.0 | +45 20 07 | 167.0968 | +10.5697 | 5.672 | 2024-10-25 | ||||
| Images | H174.6 | 5 44 55.5 | +35 08 20 | 174.6262 | +3.1058 | 40.00 | C1 | 2022-10-19 | |||
| (HD 38131) | 5 45 05.5 | +35 09 47 | 174.6231 | +3.1475 | Possible ionization source of H174.6. Distance according to Gaia EDR3: 1700 pc. | ||||||
| Images | H174.7 | 6 39 13.0 | +40 38 13 | 174.6502 | +15.1277 | 51.28 | 2024-10-24 | Bright in [OIII]. SIMBAD report several white dwarfs and white dwarf candidates in that region. None of them is in the center. | |||
| Images | H176.0 | 4 21 50.4 | +19 46 28 | 176.0113 | -20.7570 | 11.54 | C7 | 2022-10-19 | |||
| Images | H176.4 | 4 18 10.5 | +18 32 07 | 176.4072 | -22.2231 | 8.852 | 6.776 | 140 | 2024-10-27 | Also visible in [OIII] | |
| Images | H178.1 | 5 44 03.4 | +30 56 20 | 178.1154 | +0.7574 | 4.313 | 2024-10-27 | May be ionized by HD 38017A/B | |||
| (HD 38017A) | 5 44 05.2 | +30 56 02 | 178.1229 | +0.7601 | Possible ionization source of H178.1. Distance according to Gaia EDR3: about 1520 pc | ||||||
| (HD 38017B) | 5 44 05.1 | +30 55 58 | 178.1237 | +0.7596 | Possible ionization source of H178.1. Distance according to Gaia EDR3: about 1660 pc | ||||||
| Images | H180.0 | 6 03 15.6 | +31 07 17 | 180.0405 | +4.3985 | 75.39 | 2024-10-27 | Southern par hidden by LDN 1555 and LDN1557. May be ionized by BD+31 1170 and HD 40893 located in a similar distance. | |||
| (BD+31 1170) | 6 02 46.0 | +31 25 10 | 179.7280 | +4.4519 | Possible ionization source of H180.0. Distance according to Gaia EDR3: about 4400pc | ||||||
| (HD 40893) | 6 03 06.4 | +31 03 08 | 180.0850 | +4.3361 | Possible ionization source of H180.0. Distance according to Gaia EDR3: about 4400pc | ||||||
| Images | H180.6 | 6 09 45.1 | +31 11 57 | 180.6438 | +5.6530 | 53.42 | 2024-10-27 | ||||
| Images | H181.3 | 6 37 08.0 | +33 23 06 | 181.2928 | +11.8037 | 33.37 | 2024-10-24 | Also some faint [OIII] emissions | |||
| Images | H181.8 | 5 57 11.1 | +28 23 18 | 181.7670 | +1.9013 | 5.836 | 2024-10-27 | Tiny fragment of a ring around the white dwarf Gaia DR2 3431489100669462016: PN candidate | |||
| (Gaia DR2 34..06462016) | 5 57 10.4 | +28 22 27 | 181.7780 | +1.8919 | Gaia DR2 3431489100669462016. Possible ionization source of H181.8. Distance according to Gaia EDR3: about 100 pc | ||||||
| Images | H192.4 | 6 01 05.4 | +16 39 46 | 192.3884 | -3.1559 | 16.85 | A6 | 2022-10-12 | HII region which may be ionized by UCAC4 534-022196, an O-star in the distance of about 7500 pc, on the outer edge of the Milky Way. | ||
| (UCAC4 534-022196) | 6 00 58.8 | +16 40 07 | 192.3702 | -3.1760 | Possible ionization source of H192.4. Distance according to Gaia EDR3: about 7500 pc. | ||||||
| Images | H194.5 | 6 00 11.1 | +14 09 04 | 194.4711 | -4.5833 | 9.180 | A5 | 2022-10-12 | |||
| (BD+14 1106) | 6 00 13.3 | +14 08 23 | 194.4856 | -4.5813 | Possible ionization source of H194.5. Distance according to Gaia EDR3: about 1800 pc. | ||||||
| Images | H195.6 | 6 08 20.4 | +13 57 55 | 195.6004 | -2.9470 | 54.65 | A3 | 2022-10-12 | HII region which seems to be ionized by NGC 2169, a cluster with B-stars in a distance of about 1000 pc (Gaia EDR3). | ||
| (NGC 2169) | 6 08 24.5 | +13 57 50 | 195.6095 | -2.9336 | 6.647 | Possible ionization source of H195.6. | |||||
| Images | H197.6 | 6 57 23.9 | +17 51 15 | 197.5605 | +9.3132 | 56.09 | F2 | 2022-11-09 | |||
| (HD 51354) | 6 57 42.9 | +17 54 07 | 197.5499 | +9.4018 | Possible ionization source of H197.6 | ||||||
| Images | H213.6 | 6 04 17.2 | -6 43 03 | 213.6151 | -13.5272 | 40.82 | A8 | 2022-10-12 | HII region which may be ionized by B1-star HD 41335. | ||
| (HD 41335) | 6 04 13.5 | -6 42 32 | 213.6003 | -13.5369 | Possible ionization source of H213.6. Distance according to Gaia EDR3: 500 pc. |
