Uncataloged objects that are bright in H-alpha
Objects in this list were detected in H-alpha images and can be considered as HII regions. This does not necessarily mean that other emission lines are faint.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 | ||||
| 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 | ||||
| Images | H047.1-2.6 | 19 27 10.9 | +11 23 12 | 47.1374 | -2.6078 | 20.97 | 2024-10-26 | ||||
| (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 | ||||
| Images | H048.6 | 19 46 08.0 | +10 30 01 | 48.6116 | -7.1096 | 27.43 | E6 | 2023-11-23 | Bibcode: 2023RNAAS...7..274Z | ||
| 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 | ||||
| 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: Gaia DR2 1832251332171696256 | |||
| (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 | |||
| (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 | H089.4 | 20 02 28.1 | +55 34 56 | 89.4163 | +12.8697 | 8.266 | 2024-10-25 | PN candidate. May be ionized by white dwarf candidate Gaia DR2 2233941236591666688 | |||
| (Gaia DR2 22..91666688) | 20 02 28.3 | +55 33 19 | 89.3925 | +12.8560 | Gaia DR2 2233941236591666688. Possible ionization source of H089.4. Distance according to Gaia EDR3: 1500 to 3800 pc | ||||||
| Images | H100.7 | 22 06 04.6 | +55 04 26 | 100.7109 | -0.4985 | 12.57 | I5 | 2023-02-05 | |||
| Images | H105.3 | 23 12 23.2 | +45 26 01 | 105.2968 | -14.0193 | 32.44 | 21.00 | 142 | 2024-10-31 | Faint HII region | |
| 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 | H112.0 | 23 40 51.4 | +51 55 17 | 112.0072 | -9.4470 | 14.15 | 5.528 | 138 | I19 | 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 | ||
| 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 | ||
| 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 | ||||
| Images | H124.5 | 2 44 48.8 | +87 04 35 | 124.4573 | +24.5471 | 4.222 | 2024-10-24 | PN candidate, May be ionized by white dwarf GALEX J024259.7+870437 | |||
| (GALEX J024259.7+870437) | 2 42 59.8 | +87 04 38 | 124.4344 | +24.5370 | Possible 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. But not likely, because the star lies not in center. | |
| (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 H35. 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 H35. No distance measurement. | ||||||
| Images | H141.7 | 8 23 03.8 | +72 53 47 | 141.6739 | +32.5270 | 17.61 | 2024-10-24 | ||||
| Images | H143.5 | 9 27 30.4 | +69 20 45 | 143.4693 | +38.6313 | 74.30 | 51.94 | 41 | 2024-10-24 | Quite bright nebula the seems to interact with MW3 | |
| (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 | H146.3 | 3 15 13.3 | +48 01 38 | 146.3012 | -8.2131 | 57.20 | 36.16 | 125 | H7 | 2022-12-01 | |
| 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 | H149.5 | 3 26 46.9 | +45 16 12 | 149.5077 | -9.4356 | 40.63 | H2 | 2022-12-01 | Propably does not belong to much smaller PN HDW 3 which lies near the boundary. | ||
| 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 | H162.2 | 9 47 08.8 | +53 21 02 | 162.2340 | +47.2555 | 69.70 | 40.76 | 6 | 2024-10-24 | ||
| 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 | H163.6 | 9 57 03.8 | +51 50 18 | 163.6102 | +49.1826 | 18.05 | 2024-10-24 | Two small but bright nebulae which probably belong together | |||
| 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 | H168.8 | 5 08 41.7 | +37 12 55 | 168.8239 | -1.8003 | 68.64 | 38.97 | 70 | C3 | 2022-10-19 | |
| Images | H170.2 | 10 28 18.7 | +45 39 38 | 170.1637 | +56.1748 | 329.1 | 161.0 | 126 | 2024-10-25 | Faint large object | |
| 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 | ||||
| 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 | ||
| Images | H177.6 | 5 52 30.0 | +32 38 29 | 177.5808 | +3.1725 | 8.359 | C2 | 2022-10-19 | Small HII region near M37 | ||
| 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 which lie 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 | Lies close to the center of SNR candidate G181.3+12.1 with a diameter of 9.5° | |||
| Images | H181.8 | 5 57 11.1 | +28 23 18 | 181.7670 | +1.9013 | 5.836 | 2024-10-27 | PN candidate. May be ionized by Gaia DR2 3431489100669462016 | |||
| (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. |
